Evolution

What “living drill bits” can teach us about evolution Lithophaga antillarum in bore hole

What “living drill bits” can teach us about evolution

Clam fossils help scientists find errors in evolutionary tree calculations Clam shells

Clam fossils help scientists find errors in evolutionary tree calculations

New clues emerge on how early tetrapods learned to live—and eat—on land Tiktaalik illustration

New clues emerge on how early tetrapods learned to live—and eat—on land

Asian butterfly populations show different mimicry patterns thanks to genetic ‘switch’ Butterfly in the wild

Asian butterfly populations show different mimicry patterns thanks to genetic ‘switch’

How the insect got its wings: scientists (at last!) tell the tale Blue insect with large wings

How the insect got its wings: scientists (at last!) tell the tale

How fish fins evolved just before the transition to land Two views, one from above and one from the side, of a mottled, large-bodied fish with four short fins and a large paddle-shaped tail

How fish fins evolved just before the transition to land

How the ‘living fossil’ fish of North America vacuums up its prey Alligator gar in an aquarium

How the ‘living fossil’ fish of North America vacuums up its prey

Study questions expected link between farming and evolution of immune system Batwa children

Study questions expected link between farming and evolution of immune system

Fossil shows how early mammals could swallow like their modern descendants Microdocodon gracilis

Fossil shows how early mammals could swallow like their modern descendants

Ancient DNA helps scientists study human evolution: ‘It’s like a time capsule’ El Olivar

Ancient DNA helps scientists study human evolution: ‘It’s like a time capsule’