Long before birds took to the skies, dinosaurs were already sporting feathers. But exactly how they evolved into the sophisticated structures that allow birds to fly remains something of a mystery.

Add Yahoo as a preferred source to see more of our stories on Google. Illustration of a tyrannosaur preying on an ancient diving bird. (CREDIT: Andrey Atuchin) A fossilized dinosaur dropping from ...

A research team has found that a common spider kills its prey with poison but does not inject it into them—instead, it covers them with a web of silk and then covers the silk with regurgitated toxins.

The dance tradition has survived five centuries of cultural changes and fused Mexico’s pre-Hispanic past with its present Alejandro E. Hernández, Fernando Gumeta-Gómez, Gustavo Hinojosa-Arango, Marco ...