84 living cetaceans (not extinct) though there are 7 extinct cetaceans
the answer is not "who" but actually "what are" Cetaceans are marine mammals
Yes, by definition cetaceans are an order of mammals.
camels breath through their two humps they breath in through the first hump nd breath out through their second hump!
No, They breath through their nose.
Earthworms breath through their glands and out of their nostrils.....
Cetaceans are ocean-going mammals, namely the dolphins, porpoises and whales. They have hair (yes, they do, go ahead and look it up, whale facts are pretty interesting:-D ), they give live birth and feed their babies on milk produced in their mammary glands, they breath air through lungs and are warm-blooded. Fish are cold blooded, breath through filtering oxygen out of the water through their gills, have scales on their skin, lay eggs and do not nurse their young. Physically, you can tell the difference right off, even from far away - their tails! Fish wear their tails up and down, and swim with a side-to-side motion, while dolphins, porpoises and whales wear their tails flat, and swim with an up-and-down motion. :-D
they breaTH THROUgh their head
dolphins breath through whale blubber
No. They breath using their lungs or with their lungs, but not "through" their lungs. They do however breath "through" their blowholes (to get the air in and out of their lungs).
no worms do not breath through there n=mouths they breath through there skin
no they breath through their noses