People also have short jaws. We have 32 teeth. However, our teeth are quite different from the lynx's. We have short, square teeth for crushing and grinding food. Lynx have sharp, pointed teeth for cutting and slicing meat.
Lynx use their hind legs for jumping or running.
The hind legs of a lynx are very powerful and are slightly longer than the front legs. Lynx crouch before they jump or pounce on prey. When lynx crouch, their leg muscles stretch tight, like a rubber band. When they release the energy stored in their legs, they jump forward. Much the same way, a tightly stretched rubber band will fly to the other side of a room, when you let go of it.