Gorilla

Gorillas were a type of ape native to Earth.

Breeds
Amongst the specific breeds of gorilla known were mountain gorillaas.

Cultural references to gorillas
Gorillas were often the subject of fiction. For instance, one of the more popular films of the 20th century was King Kong, which depicted the adventures of a mythically large gorilla. This movie spawned imitations, such as Mighty Joe Young. There was also some literary use of gorillas. Lucy Hayward developed a life-long fear of gorillas from a book she had read as a child, and it was this fear which eventually killed her in a room on the Minotaur's "hotel". (DW: The God Complex)

It was also common for people to dress up as gorillas.

Rose Tyler described Darren Pye as looking like a shaved gorilla, "only not as handsome". (NSA: Winner Takes All)

Alien equivalents
The Doctor, John and Gillian encountered alien sabre-toothed gorillas. (TVC: The Sabre-Toothed Gorillas)