Sabre-Toothed Gorilla

Sabre toothed gorillas were a species of aggressive primate native to an unnamed planet.

The Second Doctor, John and Gillian encountered a tribe of sabre toothed gorillas, but were rescued by a professor who had developed a substance he called squidge. The group used weapons made of squidge to hold off the gorillas until they could make their way back to the TARDIS. (TVC: The Sabre Toothed Gorillas)

Sabre toothed gorillas were one of the creatures the Doctor warned Martha Jones about that could be outside the TARDIS doors when they arrived on Myarr. (DW: The Infinite Quest)