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Environment

Food web woes

If sharks disappeared from the oceans, rays might thrive, but shellfish would probably suffer.

Health & Medicine

Chew for Health

Surprise your teacher: New studies show that chewing gum might be good for you!

Health & Medicine

Wake Up, Sleepy Gene

Variation in the length of one gene affects how well you function when short of sleep.

Humans

Earth Rocks On

Some rocks in Greenland show that Earth's crust was moving even 3.8 billion years ago.

Health & Medicine

Childhood’s long history

Our ancient ancestors had long childhoods, just as we do today.

Space

A family in space

Astronomers have discovered a "family" of related objects in a distant region of the solar system.

Chemistry

A Spider’s Silky Strength

What makes spider webs so strong? Scientists attempt to unravel the secrets of silk.

Animals

Helping the cause of macaws

Scientists' discoveries about macaws may help these magnificent birds survive.

Animals

Revenge of the cowbirds

Some cowbirds seem to force other birds to raise their chicks.

Environment

Hazy with a chance of sunshine

Air pollution may reduce rainfall.

Tech

Sweet, Sticky Science

Toss out that bucket and kettle: Making maple syrup goes high tech.

Brain

Chimpanzee hunting tools

Some chimps, especially youngsters and female adults, use spearlike wooden tools to hunt.