Gigantopithecus (Blood Monkey)

A Gigantopithecus is an extinct genus of large asian apes. The largest species, Gigantopithecus blackii, is the largest primate that ever lived. Fanged, aggressive Gigantopithecuses appear in the 2007 movie Blood Monkey.

History
They remained undiscovered in a jungle in Africa. When a group of students arrived they began killing them.

Appearance
They resemble a black-haired Sasquatch with visible pectoral muscles. Like Sasquatch they walk fully upright.

Powers
They are strong enough to rip off a human arm.

Behavior
They are very intelligent, ambushing prey from the bushes. Rather than randomly killing people, they attack people where they can kill them without letting other people know they're there. They let a person go as a warning.