Anteater convergent evolution

What is Convergent Evolution? (with pictures

Convergent evolution has occurred among the Giant Armadillo of North America, the Giant Anteater of South America, the Giant Pangolin of Africa, and the Spiny Anteater (echidna) of Oceania Here's yet a third example of convergent evolution between marsupial and placental mammals. Anteaters are bizarre-looking animals, native to Central and South America, that feed not only on ants but other insects as well, with their almost comically extended snouts and long, sticky tongues The spiny anteater, pangolin and giant anteater all subsist on a diet of ants and termites, and myrmecophagy, it turns out, is a taxing, specialized trade. Scientists from Charles Darwin onward have been aware of convergent evolution and described examples of it with fascination and joy: the architectural parallelism of the wings of the bat. Anteaters may look similar to aardvarks and pangolins but they don't share a common ancestry. It was convergent evolution that developed the physical features of anteaters into what they are now. Anteaters have long tongues, strong forearms, long tongues, and tube-like snouts by which they are able to raid ant and termite mounds

So the ant-eating prowess of numbats, echidnas, pangolins, aarvarks, and anteaters is now 'explained away' as 'convergent evolution' or homoplasy. In reality, homoplasy is similarity that cannot be explained by common ancestry (evolution) Their similar traits are a matter of convergent evolution, which explains how unrelated animals develop similar characteristics as they adapt to similar environments. Pangolins are more like humans.. Convergent evolution — the repeated evolution of similar traits in multiple lineages which all ancestrally lack the trait — is rife in nature, as illustrated by the examples below. The ultimate cause of convergence is usually a similar evolutionary biome, as similar environments will select for similar traits in any species occupying the same ecological niche, even if those species are. Armadillos, sloths, and anteaters, also known as xenarthrans (Greek for strange joints), can be distinguished from other mammals by (among other things) the unique joints in their backbones that endow them with the strength and support they need to pursue their climbing or burrowing lifestyles Convergent evolution-It is the independent evolution if similar features in species of different lineages. Divergent evolution- It is the accumulation of genetic and phenotypic differences within a species, which can lead to the formation of new species over time, also known as speciation

Evolution Anteaters are one of three surviving families of a once diverse group of mammals that occupied South America while it was geographically isolated from an invasion of animals from North America, the other two being the sloths and the armadillos Anteaters were once speculated to be related to pangolins and aardvarks due to the similarities of the physical characteristics of the two animal species. However, such similarities have since been deduced to be of convergent evolution compared to common ancestry. 4. Northern Tamandu They can be interpreted as derived features of an anteater-pangolin clade or as convergent, depending on which tree one prefers. Other data sets deem an anteater-pangolin clade unlikely, supporting the traditional interpretation of character convergence. The present analysis makes it clear how deep this convergence is

10 Amazing Examples of Convergent Evolutio

NY Times Article on convergent evolutio

Anteater Facts, Worksheets, Taxonomy & Evolution For Kid

  1. Strictly speaking, convergent evolution occurs when descendants resemble each other more than their ancestors did with respect to some feature. Parallel evolution implies that two or more lineages have changed in similar ways, so that the evolved descendants are as similar to each other as their ancestors were
  2. ed that they are not common ancestors but rather products of convergent evolution
  3. Convergent evolution happens when, in different parts of the world, due to comparable environmental pressures, unrelated species will form similar adaptations. The anteater highlights this excellently, illustrating that to exploit the same ecological niche (that of ants being an available food source), four unrelated varieties evolved with.
  4. The haemochorial pattern of anteaters was likely an ancient condition of xenarthrans. Consequently, villous placentation may be attributed, at least in part, by convergent evolution, but was also characterized by some features that were widespread among xenarthrans
  5. ed not to be an indication of a shared ancestor but of convergent evolution. The explanation of why aardvarks are often generally referred to as anteaters is as a result of this similarity that includes muscular digging forearms, long tongues, and toothless, tube-like snouts, used for.
  6. Out on an evolutionary limb with divergent evolution and convergent evolution theories producing similar physical characteristic? The Drepanosaurus fossil shows a relatively massive and unique forearm for tetrapods. But this large utensil is also present in modern day anteaters including the pygmy anteater

Despite its widespread occurrence across the tree of life, many questions still remain unanswered concerning the fascinating phenomenon of convergent evolution. Ant-eating mammals constitute a textbook example of morphological convergence with at least five independent origins in placentals (armadillos, anteaters, aardvarks, pangolins, and. If convergent evolution lights your fire, tell us your favorite example of a convergent trait in the comments and we can discuss it! References: Naples, Virginia L. Morphology, evolution, and function of feeding in the giant anteater (Myrmecophaga tridactyla*). *Journal of Zoology 247 (1999): 19-41. Seiffert, Erik R List of Examples of Convergent Evolution - in Animals - Mammals. These include the four species of anteater, more than a dozen armadillos, eight species of pangolin (plus fossil species), the African aardvark, one echidna (an egg-laying monotreme),. This is despite masticatory apparatus resemblances that have made anteaters and pangolins a textbook example of convergent evolution. Our results suggest that early tooth loci innervation [ 8 ] is required for maintaining the dorsal innervation of the mandible and underlines the dorsal canaliculi sensorial role in the context of mediolateral.

Silky anteater - creation

  1. Furthermore, species between which convergent evolution is present can live millions of years apart from each other, as one fills the ecological niche left vacant after the extinction of another. This list offers ten cases of convergent evolution, each case containing either a pair or a trio of species that exhibit similar traits and/or.
  2. Accepting a convergent evolution of obligatory suspensory posture and locomotion, the last common ancestor (LCA) of modern sloths was characterized by a non-suspensory posture and probably a terrestrial or semi-arboreal lifestyle (White 1993).It can be assumed that general principles regarding the function of the mammalian quadrupedal locomotor apparatus also applied to the LCA of modern sloths
  3. Tooth loss in anteaters and pangolins represents a textbook example of convergent evolution. Ferreira-Cardoso et al. show that anteaters still present tooth neurovascular systems (dorsal canaliculi) while pangolins do not. As in baleen whales, osseous and neurovascular structures of the anteater mandible were rewired following the loss of teeth
  4. Take the spiny anteater of Australia, the pangolin of Africa, and the giant anteater of Latin America (please!). Scientists from Charles Darwin onward have been aware of convergent evolution.

Illustrate convergent evolution. Display the photo gallery, showing photographs of the giant anteater, aardvark, and long-beaked echidna. Ask students to list on a sheet of paper the names of each and characteristics these animals share. All of these animals specialize in feeding on ants and termites Are they related to armadillos and anteaters? Although for a time the pangolins were grouped together with armadillos and anteaters in the Edentata superorder, it is now considered that the similarities and parallelisms between one and the other are the result of a process of convergent evolution A. The tongues and diet of aardvarks and anteaters are an example of convergent evolution. B. The tongues and diet of aardvarks and anteaters are an example of adaptive radiation. C. The Americas and Africa were once joined together, and animals roamed freely between the two lands. D

Aardvarks and anteaters are not related. Though it was once assumed that they were due to a few of their physical similarities. However, the truth of the matter is that the two do not have similarities as a sign of sharing a common ancestor, but rather due to convergent evolution. All have evolved powerful diggin On the basis of similar diet and morphology aardvarks were once classified as close to South American anteaters and pangolins, but it is now accepted that these similarities are the result of convergent evolution rather than common descent. 8,9. Note that 'convergent evolution' is a euphemism for 'evolved multiple times. 3. Convergent Evolution happens when similar selective pressures elicit similar adaptations in distantly related groups. Convergent evolution can be rooted in biogeography, as with the marsupial and placental mammals discussed above. But that's just one instance of a more general phenomenon of convergent evolution. Look at the three organisms. Aardvark. Though it may look like an anteater, the aardvark is actually distantly related. In fact, it has come to develop a similar body-shaped based on convergent evolution.. The ancestors of both anteaters and aardvarks started to independently prey on ants, which led to similar adaptations They are not. Monotremes are mammals that lay eggs. Anteaters do not lay eggs. Anteaters instead belong to a group called the Xenarthrans, which also include the sloths, armadillos, and extinct glyptodonts. These are placental mammals, and is the.

Analogy is based on convergent evolution. The process of evolution of many varieties from a single variety of organism in a given geographical area is called adaptive radiation. It happens within a short span of time. Examples of placental mammals of Australia: Mole, anteater, mouse, lemur, flying squirrel, bobcat, wolf 1. There is a struggle for existence- populations survive but struggle with food and predator limitations. 2. Artificial Selection- when people breed organisms for desirable traits and do not breed for the undesirable traits. What did these two facts lead Darwin to? the Theory of Natural Selection- AKA Survival of the Fittest- the best adapted. The extinct human who lived 1,00,000 to 40,000 years ago, in Europe, Asia and parts of Africa, with short stature, heavy eye brows, retreating fore heads, large jaws with heavy teeth, stocky bodies, a lumbering gait and stooped posture was. Homo habilis. Neanderthal human. Cro-magnon human Convergent Evolution. With the emergence of epigenetics, we are getting hints that passing on certain characteristics to one's offspring may not be entirely random. The anteater meets its. Convergent evolution demonstrates evolutionary relationships. b. Homologous structures are the same body parts that are modified in different ways in different lines of descent from a common ancestor. c. Fossils can show evolutionary changes in bones and teeth. d. The more similarity in the structure of two proteins from different organisms.

The Pangolin Is Scaly, Weird, Cute, and the Most Poached

  1. Which is an example of convergent evolution? The elongated snouts of aardvarks, anteaters, and pangolins. What is the evolutionary relationship between a human arm and a cat's leg? They are homologous structures. Scientific theory. a widely accepted explanation supported by a wide body of observations and experiments
  2. a) Divergent evolution b) Convergent evolution c) Saltation d) Overproduction Answer: b Clarification: Convergent evolution is the process when more than one adaptive radiation occurs in a single geological isolated area. It gives rise to analogous organs. They do not show common ancestry but they show evolution. 6
  3. Development of similar adaptive functional structures in unrelated groups of organisms is called convergent evolution. It shows analogy. Examples are wings of butterfly and birds, eye of octopus and mammals, flippers of penguins and dolphins, etc

So, divergent evolution is the creation of new species through accumulation of many small 'changes' that have originated as a result of the natural selective pressures. Essentially the two new species created will diverge from each other as they further evolve. This is an important statement (as will be evident when we take a look at convergent evolution vs. divergent evolution) Convergent evolution shows that natural selection is a strong driving force of change. Due to the similarities in environments and external stimuli, species adapt similarly in order to function more efficiently. Natural selection is important in the process of convergent evolution because it shows that change consistently depends on a common. Convergent evolution is the independent evolution of similar structures with similar functions in organisms from different lineages. They do not share a common ancestor and usually evolve similar traits because they are living in similar environments. An example of convergent evolution is an aardvark and an anteater, they appear similar but do. The tongues and diet or aardvarks and anteaters are an example of convergent evolution. The tongues and diet of aardvarks and anteaters are an example of adaptive radiation. The Americas and Africa were once joined together, and animals roamed freely between the two lands

Anteater and Common name · See more » Convergent evolution. Convergent evolution is the independent evolution of similar features in species of different lineages. New!!: Anteater and Convergent evolution · See more » Cyclopedida Convergent evolution happens because only a certain number of things stick to a certain kind of wall. There are only so many ways to climb a tree, live in desert sands, or go between the sea shore and the ocean. The anteater meets its match in the long-tongued ant-eating numbat. (These not only developed, distinct from other species, lost.

But when evolutionists realize that armadillos, silky anteaters, pangolins, and spiny anteaters, despite their similarities, couldn't have evolved from the same class of animals, they explain that this is the result of 'convergent evolution' — a shaky explanation that comes out when the evidence is particularly unkind to evolutionists Convergent evolution is the most interesting one of these patterns. It is the phenomenon that nonrelated groups evolve to similar forms. An example are the woodpecker-like Darwin's finches and the real woodpeckers. anteater - numbat mole - marsupial mole mouse - marsupial mouse etc. Know more? Tasmanian Wolf Ichthyosaurs resemble dolphins Pangolins, the giant anteater, and the tube-lipped nectar bat all have developed tongues which are detached from their hyoid bone and extend past their pharynx deep into the thorax, an example of convergent evolution. This extension lies between the sternum and the trachea. The mating system of Myrmecophaga tridactyla is not well known Convergent evolution is a major topic in evolutionary biology. Low bone cortical compactness (CC, a measure of porosity of cortical bone) in the extant genera of tree sloths, has been linked to their convergent slow arboreal ecology. Low CC convergently evolved in the silky anteater (Cy. didactylus), Megaladapis, and. Lab #8- Convergent Evolution Date Conducted: 3/5/13 Date Due: 3/12/13 Introduction: Convergent evolution is when organisms in separate places and at separate times may result in similar, but not identical, adaptations. In this lab, distantly related animals that look alike in certain aspects were observed. Multiple different skulls were observed. The first was a carnivore skull

Learn about convergent and parallel evolution topic of Biology in details explained by subject experts on these placental mammals and the corresponding Australian Australia's marsupial mammals, which are similar to other placental mammals, are an example of parallel evolution. The study of convergences in mammals is crucial to understand the evolutionary processes underlying the origin. Cyndaquil is an echidna which has convergent evolution with anteaters and evolves into a badger and sure as hell ain't no mouse. Yeah, Cyndaquil being a mouse is about as likely as a newcomer to the Etrian Odyssey franchise beating a Ragelope in their first encounter with one. Which is to say so slim that it might as well not be a possibility Statement B: Analogous structures are the result of convergent evolution. (A) Statement B is correct and statementA is wrong (B) Both the statementA and B are correct glider, b-banded anteater (C) b-wombat, d-koala, c-sugar glider, a-banded anteater (D) d-wombat, a-koala, b-sugar glider, c-banded anteater. 4 The long snouts of the giant anteater, Myrmecophaga tridactyla, of South America, and the echidna, Tachyglossus aculeatus, of Australia, are animals of different evolutionary lineages that are both adapted to eating ants. This is an example of. a. anatomical homology. b. selective breeding. c. convergent evolution. d. derived character state

Anteaters are the four mammal species of the suborder Vermilingua commonly known for eating ants and termites. They are extensively distributed in South and Central America, frequenting low swampy savannas, along the banks of rivers, and the depths of the humid forests, but are nowhere abundant. but of convergent evolution. All have evolved. xenarthran lineages. They also question the placement of the purported fossil anteater (Eurotamandua) from the Middle Eocene of Europe, with the Vermilingua, and instead suggest the independent and convergent evolution of this enigmatic taxon. Keywords: Molecular phylogeny — Xenarthra — Pilosa — 12S rRNA — 16S rRNA — vo Thus, aardvarks, pangolins, and anteaters constitute three examples of convergent dietary specialization with different mastication mechanics. This suggests that the plasticity of the mammalian masticatory apparatus played a key role in the convergent evolution of rapid ingestion of small-sized food items in myologically divergent lineages

Anteater adaptations include a long, sticky tongue, few teeth, a rugged stomach, and large salivary glands (Convergent Evolution). Once again, convergent evolution called for similar structures in starkly different parts of the world. These similar structures perform similar functions because although ecosystems may vary, the niches within. Anteaters are from the same family as sloths and armadillos, but are unrelated to aardvarks and pangolins, whose similar appearance is a result of convergent evolution. Anteaters have long toothless snouts which houses an extraordinary tongue. They eat ants and raid termite mounds, feeding mostly nocturnally Convergent Evolution gives rise to analogous structures • Similar traits (analogous structures) evolve separately, but in similar environments • Similar selection pressures • Example: Placental mammals vs marsupials Wolf Thylacine Flying squirrel Flying phalanger Niche Burrower Mole Lesser anteater Ring-tailed lemur Ocelot Spotted. Parallel evolution is a curious thing, but these two (unrelated but very similar) creatures do have some distinguishing characteristics. Most obviously and notably, the anteater has a streamlined, narrow head, curving smoothly to a very long, pointed snout 10 fantastiska exempel på konvergent evolution. 17 Jan, 2020. Anteaters är bisarra utseende djur, infödda i Central- och Sydamerika, som matar inte bara på myror utan även andra insekter, med sina nästan komiskt utsträckta nosar och långa, klibbiga tungor

List of examples of convergent evolution - Wikipedi

Distantly Related but Similar (Convergent Evolution). Distantly related species can evolve similar adaptations if they live in similar environments. The picture shows different species, Giant Armadillo, Giant Anteater, Giant Pangolin, and Spiny Anteater. Each has evolved powerful front claws, a long snout, and a tongue cover with sticky saliva. Marsupial | Placental Similarities. Unknown to many, there was a marsupial wolf. The Thylacine is more commonly called the Tasmanian Tiger because it had lateral stripes across its back, but the animal was a dog. The last surviving Thylacine can be seen live in a period documentary, and numerous photos are available.They were hunted to extinction by ranchers in the late 1800s to early 1900s Evolution Palaeontology Species Animal Anatomy Science Prehistoric Animals Porpoise Mammals Convergent Evolution. . Evolution Anteater Marsupial Mammals Convergent Evolution Lemur Numbat Ecological Niche Animal Paintings.

Like the aardvark, the pangolin is a prime example of convergent evolution - two different types of animals arriving at the same form through natural selection. Clumsy looking, but agile in the trees. Scaly anteaters, or pangolins, are not considered to be close relatives of the anteaters or armadillos, which are now grouped with sloths. Pilosa include anteaters (Vermilingua) and sloths (Folivora). Modern tree sloths are represented by two genera, Bradypus and Choloepus (both around 4-6 kg), whereas the fossil record is very diverse, with approximately 90 genera ranging in age from the Oligocene to the early Holocene. Fossil sloths include four main clades, Megalonychidae, Megatheriidae, Nothrotheriidae, and Mylodontidae.

Biogeography - Evidence for Evolution - Biology 3

Pangolin, the giant anteater, and the tube-lipped nectar bat all have developed tongues which are detached from their thyroid bone and extend past their pharynx deep into the thorax, an example of convergent evolution. This extension lies between the sternum and the trachea. Reproduction [edit | edit source Convergent evolution. Study Reminders . Set your study reminders. We'll email you at these times to remind you to study. You can set up to 7 reminders per week. You're all set. We'll email you at these times to remind you to study. Monday Set Reminder-7 am + Tuesday Set Reminder-7 am + Wednesday Set. (iv) Anteaters such as spiny anteaters and scaly anteaters belong to different orders of class mammalia, not closely related but have aquired similar adaptations for diet of ants, termites and other insects. Parallel Evolution: When convergent evolution is found in closely related species, it is called Parallel Evolution Convergent evolution is all over nature, from powered flight evolving three times to each continent having its own version of the anteater. Think about that. As one delightfully un-self-conscious Science Today cover put it, convergent evolution is nature discover[ing] the same design over and over. Well, good for nature the grouping of anteaters and sloths into Pilosa, a clade that is defined by the replacement of the carapace by a coat (Engelmann 1985; Patterson et al. 1992; McKenna & Bell 1997). However, the possibility of an early emergence of anteaters from the ancestral xenarthran stock is suggested by studies on fossils ( Carroll 1988), the ea

Meet the Xenarthrans - Armadillos, Sloths, and Anteater

The concept of evolution is very useful as it applies to cancer, because it forms a paradigm of understanding that simple genetics cannot match. This concept in biology is known as convergent evolution. Two completely different species which develop in similar environments may eventually look like twins. wolves, anteaters etc. Once. A great example of convergent evolution, the shiftless sloths are only distantly related. Both are xenarthrans, sharing a presumable ancestry with land-dwelling, prominently clawed animals like anteaters and armadillos The Fossil Record as Evidence for Evolution. We started this module on evidence for evolution by looking at the claims made by the theory of evolution. The pattern of life should show descent with modification. As evolution occurs, there will be underlying change in a population's genetic makeup

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Middle EoceneEurotamandua from Germany has been considered to be the oldest anteater and the only known Old World xenarthran, based on numerous derived features shared with living Myrmecophagidae or Xenarthra. Many of these features are ambiguous, however, and comparison with early Tertiary Palaeanodonta reveals several detailed, derived resemblances in forelimb anatomy Paleo-archaeological evidence suggests pangolins may have evolved in Europe but the extant species are found only in Asia and Africa. They fulfil a similar ecological niche to anteaters in South America, but are unrelated, each having evolved to fill similar ecological roles through convergent evolution Convergent evolution. In evolutionary biology, convergent evolution describes the process whereby organisms not closely related, independently evolve similar traits as they both adapt to similar environments or Ecological niche. On a molecular level, this can happen due to random mutation unrelated to adaptive changes; see Long branch attraction The book doesn't explain how the Swimming Anteater's ancestors ended up in Africa, as nowadays the family is restricted to South America. However, the cladogram at the end of the book confirms that it is a true anteater, rather than a product of convergent evolution At one time, anteaters were assumed to be related to aardvarks and pangolins because of their physical similarities to those animals, but these similarities have since been determined to be not a sign of a common ancestor, but of convergent evolution. All have evolved powerful digging forearms, long tongues, and toothless, tube-like snouts to.

Using evolutionary history to save pangolins from

How many combinations from the following show convergent

Adaptations of anteaters :— * Nose Anteaters have an acute sense of smell which helps them to locate anthills and even allows them to tell what type of ant is inside it. The wet, black nose is located on the end of the anteater's long, pointed sno.. An example of convergent evolution: Upper left - Armadillo, Aardvark, Pangolin and Anteater- lower right. So paleontologists (and paleoanthropologists) are faced with the two challenges: how fossil organisms are related to each other and how they are positioned in the evolutionary family tree The anteater-ant relationship is an example of coevolution. Each species is a selection pressure on the gene pool of the other species. Anteaters are specific in their diet, and teeth are not required. Mutations in anteater evolution that meant a loss of teeth have been selected for over time as a selectiv convergent evolution: the remarkably parallel evolution of two disparate mammals to exploit a specialized global food resource—in this case, ant and termite colonies. This month's letter is about these two groups of relatively large mammals—anteaters in the new world and pangolins in the old. Both have evolved to solve the problem of eatin Q. The Table below shows the # of differences in amino acids in a protein called Cytochrome C when comparing humans to other organisms. List the 4 closest human relatives based on this biochemical comparison. answer choices. chimpanzee, horse, rattlesnake, snapping turtle. chimpanzee, gorilla, rhesus monkey, horse

Anteater - Wikipedi

Anteater is a common name for the four extant mammal species of the suborder Vermilingua (meaning worm tongue) commonly known for eating ants and termites. The individual species have other names in English and other languages. Together with the sloths, they are within the order Pilosa. The name anteater is also colloquially applied to the unrelated aardvark, numbat, echidnas. Convergent Evolution: Evolution produces similar structures in distantly related organisms in similar environments: Example of convergent evolution: shark & dolphin; armadillo & anteater; flying squirrel & sugar glider: Coevolution: when 2 species evolve in response to changes in each other: Example of coevolutio Aardvarks, anteaters, and pangolins are only distantly related but are similar in structure and form as a result of (a) homology (b) convergent evolution (c) biogeography (d) vestigial structures (e) artificial selection. Buy Find launch. Biology (MindTap Course List) 11th Edition Their similar habits and physical traits are an example of convergent evolution, where two unrelated species evolve comparable qualities completely separate from one another. This generally happens when they live in equivalent terrain or seek the same prey, as is the case here. Cape anteater, anteater (incorrect), African ant bear, antbear

The Four Types of Anteaters - WorldAtla

Convergent Evolution Divergent Evolution Co-Evolution Punctuated Equilibrium Gradualism 1.Over time the stripes on tigers developed in size and shape to and anteater both use this method of feeding. 6. Some plants are toxic to protect themselves from insects. In response, insects hav The answer to your specific question is that there is no relationship between plate tectonics and the four different groups of anteaters that live on different continents, but look similar. This actually happens due to convergent evolution - the independent evolution of similar features in different species that live in different places.

Safari Ecology: Ground Pangolins and Convergent Evolution

Convergent evolution. In evolutionary biology, convergent evolution is the process whereby organisms not closely related (not monophyletic ), independently evolve similar traits as a result of having to adapt to similar environments or ecological niches. It is the opposite of divergent evolution, where related species evolve different traits the extent of genome-wide adaptive convergent molecular evolution in. myrmecophages by performing genome-wide survey of convergent and. divergent amino acid substitutions using site-heterogeneous mixture. models. The aim is to identify genes presenting an excess of adaptive. convergent substitutions in myrmecophagous lineages by contrast with no Examples of species that display convergent evolution with the xenarthrans include the aardvark (Africa), the pangolin (Africa and SE Asia), and the spiny anteater (Australia) These animals all have genetically different ancestors than the xenarthrans and consequently belong to different orders than the xenartrhans, yet they have evolved.

Question No:1 Evidence of evolution from fossils is known as: [A] Paleontological evidence [B] Embryological evidence [C] Physiological evidence [D] Biochemical evidence Question No:2 Find out the correct statement from the following. (A) According to Darwin there is a gradual evolution of life forms. (B) Darwin travelled around the world in a sail ship named H.M.S. Beagle Anteater is a common name for the four extant mammal species of the suborder Vermilingua (meaning worm tongue) commonly known for eating ants and termites. The individual species have other names in English and other languages. Together with the sloths, they are within the order Pilosa. The name anteater is also colloquially applied to the unrelated aardvark, numbat, echidnas, pangolins. Class Reptilia - Image Table 26.4. - Septum totally divides ventricle in crocodiles and birds (and likely dinosaurs); makes 4 chambers. Class Aves - Birds - Image Table 26.5. Class Mammalia - Mammals - Image Table 26.6. - Most live in Australia where have evolved to fill niches filled by placentals in rest of world through convergent evolution

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