Evolution

Rare observation could support a 200-year-old story many have considered fishy.
Emily DeMarco, Staff Writer
A study of lakes in Connecticut reveals that recreational angling pushes largemouth bass to evolve.
Devin Powell, Contributor
Looking in to the complex animal life and how it has evolved over time.
Marsha Lewis, Contributing Producer
See why hummingbirds have a hankering for the sweet stuff.
Karin Heineman, ISTV Executive Producer
Sex differences in human travel behavior may have evolutionary roots.
Nala Rogers, Contributor
Competition within species ebbs and flows and sometimes leads to extinction.
Joel Shurkin, Contributor
Humans may have evolved a visual spider “template” to warn us of danger.
Nala Rogers, Contributor
Study reveals how in distantly related species, smaller birds can win battles with larger ones.
Katharine Gammon, Contributor
Evolution of Galápagos feather lice tracks hawk hosts through space and time.
Patricia Waldron, Contributor
Airplanes and birds may have followed similar pattern to increase efficiency.
Brian Owens, Contributor
The first terrestrial animals may have been helped along by a curious confluence of events.
Ker Than, Contributor
New research aims to reduce chances of bats drowning in backyards.
Peter Gwynne, Contributor