These primitive aquatic mammals did not possess the ability to echolocate, although they did have slightly adapted underwater hearing.

These mammals also possess four flippers and great hearing.

Today, most mammals possess dichromatic vision, corresponding to red-green color blindness.

Similarly, only mammals possess a true epiglottis, although a flap of non-cartilagenous mucosa is found in a similar position in many other groups.

However, fish do not have the same repertoire of antibodies that mammals possess.

Its six-leggednes& is unique, for no other known mammal possessed six limbs, although a very few species found only on Ecaz have rudimentary mid-torso organs.

Many mammals such as dogs, rabbits and moose (elk) possess dewlaps.

Because only mammals possess the brain size necessary to create civilizations and technologies.

These mammals possessed tritubercular lower molars and these were not tribosphenic and were quite primitive.

Most mammals possess the enzyme uricase, the doctors explained.