Marine mammals live and water and they need to surface to breathe. While land mammals can breathe just as humans do.
The average size of a blue whale's brain is the largest among all marine mammals.
The average size of a whale's brain is larger than most other marine mammals.
The blue whale has the largest brain of any animal on Earth, including other marine mammals. It can weigh up to 20 pounds, which is much larger than the brains of most other marine mammals.
yes
if your talking about what is the difference between mammals and non-mammals, the difference is: the non-mammals lay eggs and the mammals just have baby's out their vagina.. XD
it is a branch off of marine biology that deals with whales and dolphins and other ocean mammals
Can you be a bit more specific as to what you are comparing?
All marine mammals and fish feed on other marine life to survive. Even the smallest fish in the sea feed on algae and plankton.
The big whales as a rule don't eat marine mammals, but Orcas - killer whales - will eat seals, sea lions, and even other whales when they have the chance.
Yes. Dugongs and manatees are marine mammals but unlike dolphins they are herbivores. Dugongs subsist on sea grass.
A platypus IS a mammal. The only difference is that platypuses are egg-laying mammals, or monotremes. In every other sense, they are completely mammals.
Monotremes are the only mammals that give birth to their young in eggs