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What is the evolutionary relationship between the fin of a fish and the flipper of a whale?
There is no actual evolutionary link between whales and fish. Whales are mammals and looking at the structure of a whales flipper it looks a lot like a hand. Fish however have no bone structure in their fins.Second Answer:They're an example of convergent evolution - two structures with common features which have evolved like that due to a similar/the same purpose despite having unrelated origins. Flippers have hidden fingers.
Why are vestigial structures considered critical evidence of evolution?
Vestigial structures are considered evidence, but no more critical than any other line of evidence in Biology and palaeontology. They're considered evidence, not because of their function, but because of the way their morphologies follow the nested hierarchies of biology: the vestigial legs of whales, for instance, have exactly the kind of shape we would have expected them to have if whales had descended from land mammals. The same goes for human tailbones and embryonic branchial ridges, the wings of emus, and so on.
What is the evolutionary purpose of a narwhal?
The evolutionary purpose of a narwhal is the niche that it holds within its particular food chain. Its food chain is that of Arctic waters. Its niche within that chain is the role of predator. The predator-prey interaction, in nature and among wildlife, is intended to keep populations and their environments in balance. The narwhal niche is high up on the food chain, because it basically fears only hunters. In fact, it's prey to humans, killer whales [Orcinus orca], and polar bears [Ursus maritimus].
How do whales eat turtles?
Whales do not eat turtles in the first place.
What ocean animal eats squid?
Sperm whales and beluga whales eat squid.
How does fossil evidence from the ancestors of whales support evolution?
hard core
Do killer whales use clicker?
No, there is actually evidence for killer whales speaking english.
Where whales never land animals?
According to evolutionary theory whlaes are descended from land animals, though these land animals probably looked quite different than whales do.
What evidence about the ancestors of whales do fossils provide?
You can see that Whales have hipbones, because they use to be mammals, that walked on 4 legs.
What evidence do fossils provide about ancestors of whales?
You can see that Whales have hipbones, because they use to be mammals, that walked on 4 legs.
What evidence supports the hypothesis that whales were land dwelling mammals?
they had hip bones
What is the evolutionary relationship between the fin of a fish and the flipper of a whale?
There is no actual evolutionary link between whales and fish. Whales are mammals and looking at the structure of a whales flipper it looks a lot like a hand. Fish however have no bone structure in their fins.Second Answer:They're an example of convergent evolution - two structures with common features which have evolved like that due to a similar/the same purpose despite having unrelated origins. Flippers have hidden fingers.
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.
What evidence supports the hypothesis that whales evolved from land-dwlling mammals?
Theory of evolution
This similarity is an example of evidence that supports the theory of evolution?
Homologous structures do NOT necessarily support the theory of evolution. There was a marsupial "saber toothed" animal, the teeth of which were very much like those of some eutherian saber toothed cats such as smilodon. There is no evolutionary relationship between the teeth of these animals. However, the leg bones of cetaceans show clear evolutionary kinship with those of terrestrial mammals. There is no reason whales would have developed these atrophied appendages, nor flukes instead of tail fins, except because of their shared common ancestry with terrestrial mammals. The same hold true for the modified rib/pelvic girdles of some species of snake.
What is the Megalodons favorite food?
Evidence suggest that Megalodon - Carcharodon megalodonpreyed on whales and large sea turtles.
How are sea cows and whales alike?
Sea Cows (Manatees) and whales are not very alike. Manatees are more like elephants than whales. But I do know that both manatees and whales both have evidence that they might have once had back legs. Also, they are both aquatic creatures very large in size.
