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Story Behind a Picture

The weapons of sexual rivalry

Male-male competition, and sometimes female preferences, have driven arms races for the flashiest horns, antlers, pincers, tusks and claws

Tiny, living stones of the sea

How limestone-covered algae sway global climate — and how their fate may shift as the oceans acidify

Life’s a blur — but we don’t see it that way

Our brains manage to construct stable images even as our eyes keep darting around. Here’s what we know about how that happens. 

Sticky science: Evolution of spiderwebs

The eight-legged weavers have been hunting insects for almost 400 million years, flaunting their long history in a rich array of architectures. Scientists are still figuring out the taxonomy of them all.

What droopy antennae, crouching cockroaches and still fruit flies have to tell us about the secrets of sleep

Slumbering bugs offer clues to explaining humans’ need for shut-eye<div xmlns="http://pub2web.metastore.ingenta.com/ns/"/>

The self-made beauty of the centriole

Cells build an elegant, symmetrical structure. How they do it is intriguing on its own, but recent insights could also help explain some developmental disorders.

The base of the iceberg: It’s big and teeming with life

Passing chunks of ice can fertilize ocean waters and play a role in the planet’s carbon cycle

The marks of extinction

The mass die-offs of Earth’s past may hold clues to our future

A Notch on the many paths to cancer

Tumors and more may be fueled by an ancient protein with myriad jobs in the body. Scientists hope to tap this knowledge to generate novel therapies.

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