It possessed long hindlimbs and small forelimbs. Two external forelimbs are modified into flippers; two internal hindlimbs are vestigial. The therapsids had sprawling forelimbs and semi-erect hindlimbs. The forelimbs were smaller than the hindlimbs. The forelimbs and hindlimbs strongly resembled each other. "Carnotaurus" was further characterized by small, vestigial forelimbs and long, slender hindlimbs. The sirens are aquatic salamanders with stumpy forelimbs and no hind limbs. It was quadrupedal, and its hind limbs were longer than its forelimbs. Cats have retractile claws, slender muscular bodies and strong flexible forelimbs. This characteristic of short forelimbs can usually be seen in bipedal reptiles. They have a streamlined shape, and their forelimbs are flippers. The forelimbs or flippers are paddle-like. Whiskers (carpal vibrissae) are also on the forelimbs and average long, pointing downward and backward. The sensory hairs on the tarsi of the female forelimbs are arranged in a group. The animal was extremely robust with powerfully built jaws and very strong forelimbs.