When you contract the attached muscles (subscapularis muscle, the supraspinatus muscle, the infraspinatus muscle, and the teres minor muscle), they pull on the tendons causing the shoulder to rotate up or down, back or front, in or out; hence the name 'rotator' cuff.
Acinonyx jubatus portrait. Â© 2007 Mark Probst. The cheetah is a big cat and is now, mainly found in southern Africa. It is known for its speed as it is able to accelerate from 0-60 miles per hour in only three seconds, and it is able to reach speeds of around 70 miles per hour (112 kilometers per hour).
The big cats in this family, like the lion, tiger, jaguar and leopard, can roar, but they can't purr. The small cats in this family, along with the pumas and the cheetah, can purr, but they can't roar! Most species in this order are solitary and hunt at night. Species in this family include the cheetah, the caracal, the Chinese desert cat, the jaguarundi, the ocelot, the serval, the Eurasian lynx, the fishing cat, the lion, the tiger, and the snow leopard.