In a new study, wild regent honeyeaters became vocal tutors, teaching their disappearing song to birds in a captive breeding ...

The warming world has disrupted the timing for plant and animal reproduction, and it's usually bad news for species that ...

I was especially flummoxed by this sad man because I had just immersed myself in The Intimate Animal, a new book by the ...

Microglia (immune cells) and the RANK protein are essential for triggering puberty and maintaining fertility in the brain.

The kick-off signal for puberty begins in the brain. Specifically, in the hypothalamus, where specific neurons release a ...

There is something like less than one chance in 10 billion that this kind of thing could occur," said one expert.

Amazon mollies don't need a man, and never will. A new study finds they can purge and repair genetic mutations that would ...

Men have nipples, mammary glands and the hormones required, but the ability for male lactation rarely turns on. Here’s why ...

The tiny Amazon molly (Poecilia formosa) has always fascinated researchers because, according to the rules of evolution, it ...

For flowering plants, reproduction is a question of the birds and the bees. Attracting the right pollinator can be a matter ...

Nearly 40% of California-grown nonorganic produce has residues from PFAS pesticides — potentially toxic “forever chemicals” ...