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What evidence supports the hypothesis that whales evolved from land-dwlling mammals?
Theory of evolution
What evidence supports the hypothesis that whales evolved from land-dwelling mammals?
The evidence that supports the hypothesis that whales evolved from land-dwelling mammals includes the sinonyx. This is a wolf sized mammal that is believed to be a transition between the land animal and the ocean whale.
Explain the evidence of evolution presented by the mammals of Australia?
The evolutionary evidence presented by mammals in Australia includes unique marsupial mammals like kangaroos, koalas, and wallabies, which are endemic to the continent. The presence of prehistoric marsupial fossils in Australia supports the idea of an ancient lineage of mammals distinct from placental mammals found elsewhere. The diversity and adaptations of Australian mammals, such as the egg-laying monotremes like the platypus and echidna, further highlight the evolutionary history of mammals in Australia.
How does DNA evidence support whales evolutionary pathway?
DNA evidence supports whales' evolutionary pathway by revealing genetic similarities between whales and terrestrial mammals, particularly artiodactyls like hippos. Molecular studies show that whales share a common ancestor with these land-dwelling mammals, indicating a transition from land to water. The analysis of specific genes and DNA sequences has helped trace the evolutionary changes that enabled adaptations for aquatic life, such as modifications in limb structure and respiratory systems. Overall, genetic data provides a clear molecular framework that aligns with fossil evidence of whale evolution.
Can koalas live in lakes?
Koalas are tree dwelling marsupial mammals, not fish.
Are great white sharks water dwelling mammals?
No, all sharks are fish.
What is the primary hypothesis for the extinction of large mammals such as mammoth?
The primary hypothesis is that they were led to extinction by hunting by humans.
Are dolphins found in Alaska?
No since dolphins are ocean dwelling mammals and Alaska is a landmass
Are mammals and reptiles similar?
They have some similarities. Both reptiles and mammals are primarily land-dwelling vertebrates, though some species are aquatic.
What type of animal is a dolphins?
Dolphins are marine (sea-dwelling) mammals - they breath air, and give birth to live young.
What special adaptations do manatees have that allow them to stay underwater longer than the average land-dwelling mammal?
Manatees are not land-dwelling, they are water-dwelling mammals therefore their lungs are bigger so they can stay underwater longer.
What part of a whale is evidence for evolution?
The evidence for evolution in whales can be seen in their skeletal structure, particularly in the remnants of hind leg bones found within the body. These vestigial bones indicate a shared evolutionary history with land-dwelling mammals and suggest that whales evolved from terrestrial ancestors.
