Goat

A goat was an animal found on Earth.

Biology
Like cows, goats also produced milk which humans consumed. (PROSE: Ghosts of India)

Mountain goats were amongst the distinctive subspecies known to exist on Earth. (PROSE: Ghosts of India)

History
Goats, along with camels, sheep and horses, were a common sight in the Mongol Empire army invading Europe in 1240. (PROSE: Bunker Soldiers)

Goats were present on the Santa Maria on Christopher Columbus' voyage to the new world in 1492. (AUDIO: Trouble in Paradise)

Upon landing in Calcutta in 1947, the Tenth Doctor was, perhaps jokingly, worried about scaring the goats. So prevalent were goats in Indian society that it could be troubling if they were absent. Cameron Campbell once travelled in rural India and was disturbed by the fact he couldn't see even one child pulling a goat around by a string. (PROSE: Ghosts of India)

La Cabra De Oro was "Spain's most famous goat"; an advert for him appeared on a 2007 issue of The Daily Telegraph. (TV: Love & Monsters)

In the 2010s, a popular online video featured screaming goats, and made "Most Viewed" lists. (AUDIO: In Memory Alone)

In culture
In 1921, Buster Keaton starred a film in which he played a goat. Liv Chenka and Martin Donaldson saw the film at a cinema in London. (AUDIO: A Life in the Day)

Goat masks were sometimes worn in occult rituals. (TV: A Girl's Best Friend, PROSE: Timewyrm: Exodus, White Darkness)