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There are some whales that are supposed to be extinct. But some "extinct" animals have been found in deeper waters. There are also ancient marine mamels during the dinosour periods.
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Are marine otters extinct?
No, otters are all over alaska.
What are the distinguishing characteristics of Eutherians?
Eutherians are a group of mammals consisting of placental mammals plus all extinct mammals that are more closely related to living placentals (such as humans) than to livingmarsupials (such as kangaroos).
What mammals are fish?
No true fish are mammals. There are marine mammals such as the dolphin, orca, and whales.
Extinct marine molluscs with coiled partitioned shells?
I believe it is called a nautilaus Ammonites are extinct. Nautilus are still alive. Both are cephalopods with coiled, partitioned shells.
What was the first invertebrate?
Trilobites. They are an extinct form of marine life. They lived on the sandy ocean floors and in coral reefs.
What football team is marine mammals?
Dolphins
Are cows sea creatures?
No, cows are land mammals. They're bovines. There is a sea cow, which is an extinct marine mammal similar to the manatee and dugong.
Do marine mammals have eyelids?
Yes all marine mammals have eyelids.
What mammals do not live on land and do not lay eggs?
Marine mammals do not live on land, and no marine mammals lay eggs. Marine mammals include whales, dolphins and porpoises.
Why are Mammals exstinct?
You and I are both mammals, and we are definitely not extinct.
Are penguins marine mammals?
no their marine birds
What do you call mammals that live in the ocean?
Marine mammals.
What is the difference among marine mammals and other mammals?
Marine mammals live and water and they need to surface to breathe. While land mammals can breathe just as humans do.
Can mammals live in the hydrosphere?
Marine mammals live in the hydrosphere.
Are dolphins marine mammals?
yes, a dolphin is a marine mammal
What are jobs that work with marine mammals?
Marine biologist, vet
What two groups of marine mammals are the largest in Antarctic waters?
Whales and seals are the largest marine mammals in the Southern Ocean.
