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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.

Space

Tracking Solar Storms

Electrical storms on the sun can send charged particles all the way to Earth.

Tech

Look into My Eyes

Computers are gaining the power to track precisely where you're looking.

Health & Medicine

A fix for injured knees

A new way of repairing a common knee injury might someday help athletes recover faster.

Animals

A meal plan for birds

Scrub jays do a bird version of planning ahead for their next meal.

Planets

Defining planethood

Did Pluto deserve to be demoted from the rank of planet in the solar system?

Space

A dead star’s dusty ring

Astronomers have observed the dusty remains of a planetary system around a dead star.

Earth

Petrified lightning

Sand turned into glass by a lightning strike can provide clues about ancient climates.