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Earth

Bugs with gas

Microbes living in sand under the sea may produce gases such as propane.

Animals

A seabird’s endless summer

Food plays an important part in the migration of seabirds and songbirds.

Animals

How to silence a cricket

A killer fly stalks noise-making crickets in Hawaii.

Fossils

Flying on Wings and Legs

An ancient bird had feathers on its legs that may have helped it fly.

Plants

A Change in Leaf Color

Leaves go to a lot of trouble to turn red in the fall.

Humans

Oldest Writing in the New World

Signs carved into a stone slab may represent the earliest known writing in the Americas.

Planets

A Puffy Planetary Puzzle

Astronomers spot an unusual object orbiting a nearby star.

Animals

Sea Giants and Island Pygmies

Food supply may help decide an animal's natural size on an island or in the ocean.

Brain

Copycat Monkeys

When you stick out your tongue, a baby monkey will follow your lead.

Animals

Roach love songs

Some male cockroaches whistle at females to get their attention.

Health & Medicine

Getting Enough Sleep

Kids and teens need plenty of sleep but have trouble getting enough.

Fossils

A Rainforest Trapped in Amber

Tiny fossils show that rainforests existed in the western Amazon millions of years ago.