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Dolphins didn't always have a straight body, a tail, flippers, and fins. Over 50,000,000 years ago, dolphins were 4 legged creatures that lived on land. Over time, their body shape changed. Their front legs became flippers, their hind legs disappeared, and their nostrils was put on top of their head as blowholes!
What else can I help you with?
Do whales have vestigial legs?
No, whales do not have vestigial legs. They evolved from land-dwelling mammals that had legs, but over time, their legs became adapted into flippers for swimming.
How do whales evolved?
they evolve threw a PERIOD of time
Why does a whale have a pelvis bone even though its not used?
''it is because whales evolved over time during a point around 48 million years ago they were land animals so they needed their pelvic bone but as the whale evolved it kept that trait just as humans evolved and kept some unnecessary traits like wisdom teeth or an extra kidney''
How has slavery evolved over time?
how did washington view on slavery evolved over time
How have chopsticks evolved over time?
go
Why do whales have the holes on their heads?
Whales originally evolved from a dog looking creature. Over thousands of years, the nose of the species continually moved to the top of its head. Which is why the current evolution of whales have the blowhole on the their head.
Has the Grand Canyon evolved over time?
Yes over a very long time
Who recognized that species evolved over time?
Aristotle
Whales have vestigial legs This suggests they?
That they evolved from land animals.
Where do whales migrate from?
Whales migrate in a loop over time. They migrate back a forward between several places.
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.
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
