As early humans spread from lush African forests into grasslands, their need for ready sources of energy led them to develop a taste for grassy plants, especially grains and the starchy plant tissue ...

Keeping Warm Animals such as emperor penguins need behavioral as well as physical adaptations to survive in harsh conditions. This begins with their social behavior.

Ape behavior just got a name upgrade — “scrumping” — and it might help explain why humans can handle alcohol so well.

A new study finds early humans ate tough grasses and tubers long before their teeth adapted, suggesting behavior, not biology, drove human evolution.

Across North America, grackles are virtuosos of adaptation. The small- to medium-sized New World blackbirds are particularly social and known for foraging skills that help them flourish in ...

New isotopic and fossil evidence suggests that early primates, including hominins, began eating grasses long before their bodies evolved the traits ...

Long before evolution equipped them with the right teeth, early humans began eating tough grasses and starchy underground ...

Animals that hibernate are incredibly resilient. They can spend months without food or water, muscles refusing to atrophy, ...

Neanderthals probably ate something most of us would find hard to swallow—meat that was left to rot, ferment, and fill up ...

Across North America, grackles are virtuosos of adaptation. The small- to medium-sized New World blackbirds are particularly ...

Hibernating animals' amazing abilities could lie within our own DNA—and perhaps their resilience could one day be ours too.