Lamprey Contraception
An evolutionary quirk in the sex hormones of sea lamprey could help bring the destructive Great Lakes invader under control.
Prairie Dog Alarms
Prairie dogs have different alarms calls for predators of different colors and different species.
Podcast
SOUNDS & SIGNALS: Prairie dogs sound the alarm, turning bed bugs against themselves, bird songs vary by climate, and improving forensic voice comparison.
Polynesian Migration
A surge in food poisoning from tropical fish may have prompted human migrations in the South Pacific.
Frogs Fight Disease
Some frogs produce chemicals that could be used to treat human diseases.
Dancing Animals
Some animals can dance to a beat, while others have no rhythm.
Polar Bear Hibernation
Polar bears don't hibernate the way that other bears do.
Podcast
BODIES: Regenerating tooth enamel, why we have fingernails, why hair turns grey, and more.
Space Ornithology
Finding better ways to track migrating animals could help predict and slow the spread of disease.
Dolphin Voiceprints
New technology turns dolphin sounds into 3-D images.
Clicking Antelopes
Male eland antelopes click their knees to warn other males of their fighting ability.
Podcast
Blue bananas hide in plain sight, life spurred earth's mineral diversity, boats sport manatee alarms, and more.
Podcast
COGNITION: Crows don't forget a human face, magpies see themselves in mirrors, wasps remember each others' faces, how much memory can our brains store, and more.
Oldest Ant
A scientist discovers the world's oldest living ant species in the Amazon.
Antelopes & People
When wild animals are exposed to people, do they become more vulnerable to predators?