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

A Galápagos bird species is stunning behaviorists with their “freewheeling” lifestyles. Described in the journal PLOS One, ...

Dragline silk or major ampullate (MA) silk, the part of a spider's web that forms the main frame and spokes, is one of the ...

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

Female praying mantises are notorious for eating their mates during or after sex. Now, scientists have discovered a dwarf ...

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

For the Ancient Greeks, beards signaled age, status, and virtue, turning these into symbols of masculinity, honor, and social control.

A hybrid grolar bear saga is unfolding in the Arctic, and the tale of this strange family has much to tell us about nature on ...

Leggy and sharp-eyed, Common Grackles (along with their larger, showier relatives, Great-tailed Grackles and Boat-tailed ...