explain.
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Why are sharks and toothed whales an example of convergent evolution?
Sharks and toothed whales come from different evolutionary origins, but they have evolved similar features because they have similar needs within their environments. Some of their similar features include:
.. stream-lined torpedo-like body shape
.. flippers/fins
.. similar tails for propelling themselves forward, though the sharks wave their tail fins side to side and whales wave their tail fins up and down
Reply:Convergent evolution occurs when two species that are not closely related to each other (specifically, they do not have a common ancestor that shows the characteristic in question) develop similar shapes or functions. This generally occurs because they live in the same or similar environments, and solve the same problems the same way. In this case, both sharkes and toothed whales have very streamlined bodies, to make swimming through the relatively dense medium (water) easier.
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