Epaulette sharks can reproduce without any measurable increase in energy use, stunning researchers who expected egg-laying to ...

A surprising new study has found that blocking reproduction in some mammals may increase their life expectancy by an average ...

Hungarian biologist Tibor Gánti is an obscure figure. Now, more than a decade after his death, his ideas about how life began ...

A new study found that women in Finland who had a lot of kids—or none—aged faster than those with one or a few kids. But the ...

Epaulette shark remain 'remarkably stable' throughout a reproduction process.

Many mammal populations in European and North American zoos are aging—a trend that jeopardizes the long-term viability of so-called reserve populations and, with it, a core mission of modern zoos in ...

Want better sex this year? These book recommendations fill the pleasure, desire, and communication gaps most of us were never ...

Social media algorithms may decide what life stage you slot into, and it's difficult to break out of it.

Coyotes are often described as adaptable survivors that thrive wherever humans live. That description, while accurate, leaves out an important part of their lives. Research over the past decade has ...

Genetic sequencing research led by the Federal University of Pará charts a route for protecting Amazonian species. Focused on ...

A new study suggests humans belong in an elite “league of monogamy,” ranking closer to beavers and meerkats than to ...

“While the human penis functions primarily to transfer sperm, our result suggests its unusual large size evolved as a sexual ...