Every summer, the bold green-headed drakes that patrol neighborhood ponds seem to vanish without warning, replaced by drab, female-looking imposters. The real mallards never left, but what is ...

Testosterone deficiency screening and replacement therapy will soon be on offer for active-duty service members as a military readiness initiative as part of a new military readiness program announced ...

Allow me to show you what life in the trans trench has been like for the past decade, with a combination of personal story ...

Discover 25 trailblazers who didn't get the recognition they deserved. Uncover forgotten pioneers like Rosalind Franklin & ...

Behaviourist Jackie Drakeford on why understanding your gundog's breed instincts makes training easier, and how to work with ...

Prisons do more than contain the bodies marked for social liquidation and premature death; they function as an archipelago of learning deserts that ...

A father's perspective sheds light on the clash between tradition and inclusion in South Africa's evolving society, in ...

Why do men have an Adam's apple? A biologist explains the puberty hormone surge behind it, the sexual-selection theory and the debate over what it signals ...

Forbes contributors publish independent expert analyses and insights. I write about biodiversity and the hidden quirks of the natural world. Human hair growth is not indefinite; it's precisely ...

When it comes to choosing a partner, some species prefer males that stand out from the crowd. Evolutionary biologists call the resulting process negative frequency-dependent selection. It means that a ...