A study reveals how seabream change sex and why some males invest more sperm, rewriting the hidden biology of these fish.

Male bonobos are able to interpret female fertility cues even when those signals do not reliably indicate ovulation. This ability helps them direct their mating efforts toward times when conception is ...

Discover expert-backed tips to identify male vs. female bearded dragons and learn why sexing matters for proper care and long ...

Perched on a plastic chair overlooking a colony of Nazca boobies in the Galápagos Islands, researcher David Anderson ...

After the huge response to our list of Hottest Actors Over 50, we're turning the spotlight to Hollywood's most glamorous and ...

Internal clocks can tick very differently. While some people are most productive in the morning, others are only active later ...

As for Cynthia Erivo, a repeat nominee for playing Elphaba alongside Grande in the “Wicked” movies, Variety informed her she ...

In 2002, evolutionary biologist Jenny Graves shared a controversial calculation. The human Y chromosome, she wrote two years ...

For those who have not made the pilgrimage to Mecca, something may surprise. The men cry. Quietly and intimately, but obviously. Some are hard men from hard lands, but they’re not ashamed to do this.

From the ocean to the classroom, from Atlantic Canada to the U.S. South, these people are finding ways to save a species ...

Although evidence of a new infusion of bloodlines is lacking, both transplant animals are alive, and breeding is anticipated ...

Growing up, I vividly remember reading through nature-related magazines, fascinated by the vast numbers of creatures ...