Charles Darwin – The Descent of Man (1871)

by vyh

Brehm, when accompanying the Duke of Coburg-Gotha, aided in an attack with firearms on a troop of baboons, in the pass of Mensa in Abyssinia. The baboons in return rolled so many stones down the mountain, some as large as a man’s head, that the attackers had to beat a hasty retreat, and the pass was actually closed for a time against the caravan.