Ben tells the story of a Facebook video about Pilanesberg National Park (ASR 'Planisburg') in South Africa: Kruger National Park's population-control culls removed the mature bulls and relocated the young, and as the young males reached adolescence they entered musth (ASR 'must') abnormally early and began attacking white rhinoceroses — more than 40 killed between 1992 and 1997, with 63 rhinos documented at another site — chasing and beating carcasses, 'gang behavior.' Researchers transported in six mature bulls; the young bulls' abnormal musth patterns subsided and the rhino killing stopped immediately, with the older bulls physically disciplining the young (gore marks on hindquarters; the tracked 'vigilante' bulls). Dan also watched the video.
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Young males without older males
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The missing ingredient was older males
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