Most people think of moths as small insects fluttering across porch lights, but some species greatly challenge that image.

Killing the protected animals may be the only way to stop them from eating too many of the Pacific Northwest’s endangered ...

A large-scale analysis of 117 mammal species found that preventing reproduction is associated with longer lifespans, suggesting a strong link between reproductive activity and life expectancy. Why do ...

A common parasite expands across species by abandoning sex, boosting short-term spread while risking long-term collapse.

A fossilized dinosaur egg discovered in central India has turned out to be even stranger than it first appeared. Inside the ...

A groundbreaking new study from Bar-Ilan University shows that one of sleep's core functions originated hundreds of millions ...

As herds rely on fewer replacement heifers, the stakes for getting each one pregnant at the right time are higher than ever.

Humans like plants. We like seeing them change the color of their leaves throughout the year. They connect us to nature even ...

Returning to the same site to breed confers a risk of inbreeding with relatives, with the consequent genetic liabilities of ...

The Pittsburgh Zoo and Aquarium's International Conservation Center works every day to protect and preserve elephants. Bill Murray once quipped. "They say an elephant never forgets. What they don't ...

In the past three decades, poaching has decimated Africa’s now-critically endangered forest elephants, and as a result, their vital role as seed dispersers of many forest plants has been disrupted. A ...