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Why do scientist think whales evolved for acient mamals not fish?
Wiki User
∙ 8y ago
Because they believe that mammals evolved from land-based creatures. When scientists studied the whales they noticed that whales share a lot of bodily functions with land living mammals despite their fishy apperance. The most obvious one is that they need to breath air, fish on the other side can breath water. Whales are warmblooded, fish are coldblooded. Whales get pregnant and have a womb where the fetus grow until it is born, fish on the other hand lay eggs which develop outside the mothers body. A whales skeleton also has several details in common with land based mammals (see http://en.wikipedia.org/wiki/Evolution_of_Cetaceans). In more recent years, scientists have compared the DNA of whales with land based mammals and found that they have a lot in common, and thus must be closely related.
Wiki User
∙ 15y ago
Wiki User
∙ 8y agoThe first thing to notice on this evogram is that hippos are the closest living relatives of whales, but they are not the ancestors of whales. In fact, none of the individual animals on the evogram is the direct ancestor of any other, as far as we know. That's why each of them gets its own branch on the family tree.
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Are whales big mamals?
Yes Whales are warm blooded which makes them a mammal
Do whales ever accidentally have babies with fish?
No. Whales are mamals and fish are fish (ichthyoids) -- these two kinds of animals cannot breed.
What type of fish are whales and sharks?
there not at TYPE of fish they are a GROUP of fish called MAMALS
What is a whale a type of?
whales are mamals, the question is not specific enough to provide a more detailed answer, sorry
How do whales evolved?
they evolve threw a PERIOD of time
What type of scientist studies whales?
Cetology is the branch of marine science associated with the study of cetaceans, which is the order that contains whales, dolphins, and porpoises. Logically, a scientist who studies whales is therefore a cetologist.
Whales have vestigial legs This suggests they?
That they evolved from land animals.
Is blue whale a type of dolphin?
No dolphins had a different evolution from whales. Whales evolved from a footed creature similar to a hippo (no, seriously) and dolphins evolved from a footed creature a lot smaller.
What are the ocean mammals diet?
it is sewead and little tiny planktons and whales and dolphins are the most healthy mamals in the world and if you need more answer call junbug360
Is it true that whales and dolphins are all mammals that evolved in the oceans during the tertiary period?
yes they evolved from the trilobites
What should i conclude as a scientist if a newly founded species has a pelvis but no legs?
A scientist would conclude that the ancestors of the given animal DID have legs, but, that over time, they evolved to become legless. Some examples of this kind of evolution include snakes, whales, dolphins, and the extinct, superficially fish-like icthyosaurs.
What wild life is in Tristan da cunha?
Mainly sea birds, Penguins, Albatross, Skuas, Shearwaters, Petrels and Terns, Seals and Whales. There are no native mamals
