Mammals, like most vertebrate creatures evolved in a similar way, depending on their environment. They all come from the same root creatures and became highly specialised in their own niches. A classic example of this is the penadactyle limb. The bone arrangement of this five digited limb is pretty much the same for most creatures from whale, man, elephant, horse, bat, bird etc, but each has been adapted to suit a purpose best from flying, swimming or in the case of humans opening a bottle of fine Spanish Rioja.
Upon My Own Studies I Have Found That All Aquatic mammals Have A Back Fin That Moves Up and Down Instead of Like A Fish Which Is Side To Side...
Most mammals give birth live, with the exception of the platypus.
They don't all look alike. They are beautiful as compared to leftwing mainstream hags.
Horses and dolphins are both mammals, but a horse lives on land and a dolphin lives in the water. As mammals, both have spinal columns, breathe oxygen and have cells that get energy from cellular respiration. They both also give birth to live young and nurse them until the young are old enough to eat solid food.
Mammals and birds are "warm" blooded, reptiles and fish are "cold" blooded. Proper terminology would be that mammals operate at a constant temperature, whereas reptiles cool off in the cold. Structurally they are all more or less alike, but the enzymes of "cold" blooded animals can operate over a much wider temperature range.
Penguins are not mammals. They do not have fur, nor do they suckle their young - nurse their babies with milk. Penguins are flightless birds. They have feathers.
They are called teats on animals. Yes, all mammals have them.
Fish are not alike to mammals
They're all hooved ruminant mammals that are herbivores.
they are both mammals
They are mammals and have whiskers.
they are large mammals
they are both mammals
Both are four legged placental mammals. Other than that, they are not related at all.
Fish, birds, reptiles, dogs, and mammals are all similar in one way. they all have a backbone. ~ann :]
they are both mammals.
they are both apes(primates) and they are mammals
YES. They are because we and whales are mammals.
Both are mammals and both are classified as carnivores.