Empress Yakei, Alpha Japanese Macaque
(Macaca fuscata a.k.a. Snow Monkey)
(image: Takasakiyama Natural Zoological Garden)
(via New York Times email briefing):
Yakei, a female Japanese snow monkey who lives in a nature reserve, violently overthrew a trio of high-ranking males (and her own mother) to move up the ranks and become the first female leader in the reserve’s 70-year history. Yakei’s ascent to alpha status surprised both scientists and reserve workers, who are now closely observing her reign.