Engraving of gelada baboon.
Date 1835
Source Neue Wirbelthiere zu der Fauna von Abyssinien gehörig
Author Eduard Rüppell, 1794-1884
Source: https://commons.wikimedia.org/wiki/File:Neue_Wirbelthiere_zu_der_Fauna_von_Abyssinien_geh%C3%B6rig_(1835)_Theropithecus_gelada.png

The gelada baboon (Theropithecus gelada), sometimes called the bleeding-heart monkey, is a species of Old World monkey found only in the Ethiopian Highlands, with large populations in the Semien Mountains. It is largely terrestrial, spending much of its time foraging in grasslands.