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Just a thought but a few characteristics would be
Warn Blooded
Live Young (not exclusive to mammals but a big characteristic, I think one or two mammals lay eggs but that's it)
Air Breathing (definitely not specific to mammals but distinct from alot of sea creatures)
Produce Milk (I think this is exclusive to mammals)
4 Chambered Heart
Belong to the order of Cetacia (Whales, Dolphins and Porpoises), a mammalian placental order
What else can I help you with?
What mammal makes up one-quarter of all species on Earth?
bats
What kind of mammal is a blue whale?
just a regular mammal like us humans, but you may think they are not because they live in the water. Whales have a blowhole nod come up for air every once in a while.
What kind of biologists study whales?
*A+* zoologistA marine biologist could study whales, as well as everything else that makes up the marine environment. All are interlinked to their environment in some way. Obviously, based on such a vast subject, there are those who will specialise on a very specific subject - whales being one.
What does the biggest mammal weigh?
The largest mammal on earth is the blue whale, which can weigh up to 200 tons, which makes it the heaviest known animal to have ever lived.
What animal lives in the sea but is a mammal that must come up for air?
There are several sea mammals: Dolphins, porpoises, killer whales (orca), seals, walrus, manatees, dugong, seaotters, whales, and sea lions are the most widely known.
Why is a whale not a mammal?
Some of the things that show that a whale is a mammal, not a fish: Whales have lungs and breathe air. Fish get oxygen from the water passing through their gills. Like all mammals, female whales produce milk to nurse their young. Fish cannot do that. Whales are warm blooded (they can keep their bodies at a constant temperature even in frigid water). Fish are cold blooded (their body temperature is the same as the water around them).
Is a killer whale a fish?
Whales looks like fishes. They can swim in water like them but they are not fish as they respire with lugs, have four chambered heart, diaphragm, mammary gland, hairs, etc. Whales are viviparous like any other mammal.
Are whales fish?
No. Whales must to breathe air - they do not have gills and can not breathe underwater. Also, they are mammals, giving birth to live off-spring and suckling them.An easy way to distinguish most marine mammals from fish is the angle of the tail - mammals have it horizontal and fish (including sharks) have a vertical tail fin.No, whales are mammals, like dolphins. An easy way to tell is if something swims with it's tail moving side to side, it is a fish. If the tail moves up and down, it is a mammal. A whale is a mammal, it gives birth to live young and has to rise to the surface to breathe. its whale and no whales are mammals
Do whales move fins from the side?
No. Unlike fish, whales and dolphins move their fins up and down when swimming. Think of the fin's motion as being related to the spine's motion. A fish's tail fin moves from side to side because it moves its entire spine from side to side when swimming. A whale's tail fin moves up and down because the animal's spine is moving up and down. Whales and dolphins (called Cetaceans in scientific jargon) evolved from land-dwelling mammals. When a mammal walks and especially when it runs, one can see its back moving up and down. The Cetaceans retained this up-and-down spinal movement when they moved from running back to swimming.
Why do whales back fins swim up and down and sharks side to side?
Because a whale is a mammal and a shark is a fish... there is no comparing the two. whales will use less energy to resurface or even jump out of the water with thier tale design. also to kick up the waters bottom to flush small shimp and stuff. thats the best i got.
Three facts about the blue whale?
Blue Whales don't often eat plankton. Blue Whales can go under longer than any other animal. And Blue Whales live up to there name by being different shades of blue.
Are killer whales faster than dolphins?
Blue whales can swim on average 20 kilometers per hour, but can get up to 50 kph in short bursts while Right whales can only go about 5 kilometers per hour.
