In fact the blue whale is the largest living mammal (and animal species) on this earth. In terms of size the blue whale can grow to lengths of over 90 ft. long and weigh more than 150 tons. Breathing air – Mammals have lungs and require air to breathe, so they are unable to breathe underwater like fish and amphibians.
In this manner, which fish is a mammal?
Like every mammal, dolphins are warm blooded. Unlike fish, who breathe through gills, dolphins breathe air using lungs.
What kind of an animal is a whale?
Whales breathe air. They are NOT fish. They are mammals that spend their entire lives in the water. Cetaceans are the group of mammals that includes the whales, dolphins, and porpoises.
Mammals all are warm-blooded animals, they breathe air, have hair, and moms feed their babies milk from mammary glands. Whales actually do all of these things! Whales are warm blooded, which means they keep a high body temperature that does not change in the cold water. So whales are indeed mammals and not fish!
Like other birds, penguins have feathers. Penguins are fish, mammals, or amphibians because they live in water, on land, or both. Penguins are birds, even though they spend time on land and in water. Their motion in the water more closely resembles flying than the swimming motion used by other animals.
They include kangaroos, koalas (above left), tasmanian devils, wombats (above right), and other typical Australian mammals. Until recently, they also included the marsupial wolf, Thylacinus (below). Though marsupials today do not have as many species as do the placental mammals, they are quite structurally diverse.
Just as the blue whale (Balaenoptera musculus) is the largest living mammal*, the whale shark is the largest species of any fish; females have been known to reach 65 feet in length and up to 34 tons, although most whale sharks may never reach such record sizes.
Amphibians are cold-blooded, which means that they are the same temperature as the air or water around them. There are more than 4,000 different kinds of amphibians. Members of this animal class are frogs, toads, salamanders, newts, and caecilians or blindworms.
Sharks are not mammals. Rather, they are a species of fish. Sharks have a skeleton that is entirely composed of cartilage and is equipped with leathery, tough and scale less skin. These skeletons differ greatly from those of the bony fish.
All mammals (including humans) have the same distinctive features. These include: fur or hair growing from the skin. mammary glands that, in females, produce milk for feeding the young.
Reptiles include alligators, crocodiles, turtles, and snakes. Amphibians include salamanders, toads, and frogs. One difference between the two is the structure of their outer skin. Reptiles are covered with scales, shields, or plates, and their toes have claws.
Amphibian eggs must be kept wet, as most species develop after a larval stage, a phase during which they use gills to breath underwater. It isn't it until they reach adulthood that they form lungs. Since geckos are reptiles, the females generally lay, on land, two soft, white eggs that harden quickly.
But bats are very special mammals. Flying squirrels are mammals too, but they don't really fly. They jump from high in a tree glide through the air like a kite. Bats flap their wings and fly like a bird.
Since they can live on land, they also have an expanded lung system. Reptiles include turtles, crocodilians, lizards, snakes and tuatara (found only in New Zealand). The reptiles of Quebec are represented by turtles and snakes only. Curently, there are 37 known species of amphibians and reptiles in Quebec.
Fish are neither mammals or amphibians. Mammals, reptiles, amphibians, birds, insects and you guessed it, fish. They aren't mammals or amphibians because they are fish.
The whale shark (Rhincodon typus) is a slow-moving, filter-feeding carpet shark and the largest known extant fish species. The largest confirmed individual had a length of 12.65 m (41.5 ft) and a weight of about 21.5 t (47,000 lb).
Reptiles: Snakes, lizards, turtles, tortoises, crocodiles, and alligators are all reptiles. Amphibians: Frogs, toads, salamanders, and caecilians are all amphibians. The Differences Between Reptiles and Amphibians: And turtles are reptiles, but they live in water.
Bears Are Mammals. Bears are large, strong omnivores. Omnivore is a fancy word for animals that eat both meat and plants. They belong to the mammal class.
Mammals breath air; fish get their oxygen through the water. It's certainly not a mammal, since it doesn't suckle its young. They are classified as fishes, in the genus Hippocampus. There are many species of seahorse.
The five most well known classes of vertebrates (animals with backbones) are mammals, birds, fish, reptiles, amphibians. They are all part of the phylum chordata -- I remember "chordata" by thinking of spinal chord. There are also a lot of animals without backbones.
An octopus is an invertebrate animal, which means it has no spine. More specifically, an octopus is a cephalopod, like squid and cuttlefish. They're some of the smartest invertebrates. Mammals like giraffes, on the other hand, are vertebrate animals, which means they have spines.
Like the beluga, narwhals are medium-sized whales. Narwhals do not have a dorsal fin, and their neck vertebrae are jointed like those of other mammals, not fused as in dolphins and most whales. Found primarily in Canadian Arctic and Greenlandic and Russian waters, the narwhal is a uniquely specialized Arctic predator.