Panther

Panthers are creatures found in the Nursery Repository in 2253.

Characteristics
These big black cats probably have a higher Sneak skill than you do. Why they're included in the stocks of animals that Vault 29 had available is anyone's guess.

Van Buren
This animal is large, fast, silent, and obviously a carnivore. It hits good and does a fair amount of damage. It can sometimes surprise its prey, but usually depends on its great speed to reach enemies before they have a chance to react. It is questionable as to whether or not it would be accepted in a town. Perhaps if leashed with a chain.

Appearances
Panthers were to appear in Van Buren, the canceled Fallout 3 by Black Isle Studios. A panther is also featured in the Penny Arcade comic "One Man, and a Crate of Puppets" as an inhabitant of Vault 43.