Evolution

The finding could help answer a longstanding question of how massive stone blocks were hauled into place

The hues and patterns of modern bird eggs trace back to their dinosaurian ancestors

A tiny fly, related to biting no-see-ums, pollinates cacao trees and enables our chocolate cravings. Christopher Intagliata reports. 

A damaged frill bone allows us to revisit a brief moment in prehistoric time

Not a trick: We’ve been hooked on chocolate treats for a long time.

Remote-sensing studies have revealed the ancient settlements in southern Mexico

Little-studied ethnic groups are helping researchers to understand the movements of people who lived on the continent tens of thousands of years ago

Seven complete specimens of 100-million-year-old flower found preserved in amber

A new study proposes that all dinosaurs shared a basic lung anatomy which may have given them an evolutionary edge

Octopuses react to MDMA much like humans do. And not surprisingly, given their anatomy, the animals are excellent huggers. Annie Sneed reports.

Small throat bones from the prehistoric feline Smilodon suggest it used fearsome vocalizations to communicate  

Researchers taught two dozen wild sparrows new songs, by playing them the recordings of sparrows that live thousands of miles away. Jason G. Goldman reports.