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1932

In Review

Animals use physics? Let us count the ways

Cats twist and snakes slide, exploiting and negotiating physical laws. Scientists are figuring out how.

How the brain calculates a quick escape

Whether fly or human, fleeing from danger is key to staying alive. Scientists are beginning to unravel the complex circuitry behind the split-second decision to beat a hasty retreat.

New projects broaden the search for alien signals from space

A longer list of Earth-like planets, eavesdropping on radio waves and looking for laser light shows: All raise the chances of detecting E.T.

Winding the body’s clock

Medicines and other small molecules may play a role in fixing rhythms gone awry

Cell meets robot in hybrid microbots

Researchers are developing microbe-propelled tiny bots to deliver drugs, target cancer or do other work in the body

Why speech is a human innovation

Many animals have the equipment for spoken language, but only people have all the right neural connections

Cracking life’s code

We think we know DNA, but little progress has been made in understanding the evolution of how it encodes proteins

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