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 ...

Traces of ancient hormones were detected in the tusks of a woolly mammoth that lived more than 33,000 years ago, revealing that the now-extinct creatures had episodes of raging testosterone. The ...

"Because musth is associated with dramatically elevated testosterone in modern elephants, it provides a starting point for assessing the feasibility of using hormones preserved in tusk growth records ...

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.

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