Petite parrots provide insight into early flight

High-speed video shows that tiny parrots direct their hops to use the least amount of energy necessary.

The Zika epidemic began long before anyone noticed

Zika spread undetected into Brazil and Florida, a genetic study suggests.

New test may improve pancreatic cancer diagnoses

Blood test that detects five tumor proteins may someday help doctors better screen for pancreatic cancer.

TRAPPIST-1’s seventh planet is a chilly world

Follow-up observations of TRAPPIST-1 and its seven planets reveals details about the outermost one.

How a flamingo balances on one leg

Flamingos’ built-in tricks for balance might have a thing or two to teach standing robots or prosthesis makers someday.