The animal kingdom is full of sexual competition, and extinct creatures are no exception: Researchers found evidence that male woolly mammoths experienced hormone-induced states of aggression towards ...

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Once a year, adult male Asian and African elephants go through musth, or a period when their reproductive hormone levels—including testosterone—surge, and they act more aggressive and unpredictable.

Traces of sex hormones extracted from a woolly mammoth's tusk provide the first direct evidence that adult males experienced musth, a testosterone-driven episode of heightened aggression against rival ...

Musth, a time of heightened testosterone levels and aggression in male elephants related to reproduction, has now been identified in woolly mammoth tusks. Remarkably, this is the first time hormones ...

Indunil N. Pathirana, Chandana Rajapaksa, Noritoshi Kawate, Anuradha Wimalarathne, Lakshitha Fonseka, Priyangika Nilmini Weerakoon, Minhaj A. Hannan, Basil Alexander, Anil Pushpakumara, Siril ...

Testosterone preserved in the tusks of male woolly mammoths reveal that they went through a seasonal change called musth, just like modern elephants do. Once they reach sexual maturity, male African ...

Musth is an annual, asynchronous, rut-like phenomenon observed in male elephants. We examined whether musth is a roving strategy, and whether musth provides a temporary advantage to young males ...

A male elephant killed two villagers in a hormone-induced rampage in northern Thailand. The bull named Plai Boonmee trampled his mahout to death while hauling logs through a forest in Uttaradit ...