Evolution’s Non Debate

When Titanoboa ruled the Amazon

Florida Museum researchers’ discovery of a giant fossilized snake reveals that the tropics were ruled by beasts larger than anyone imagined.

Mirror Neurons

Mental Mirrors

Special cells in the brain mimic the actions and intentions of others, forming the basis of empathy and social connections.


The Origins of Form

Ancient genes, recycled and repurposed, control embryonic development in organisms of striking diversity.

Darwin's Shrink

Darwin’s Shrink

A noted Darwin historian probes the naturalist’s inner life.

Moray eel

Jaws Two

Moray eels grab scientific attention—and more—with their jaws.

Fish art

Fish Out of Water

Human ailments as varied as hernias, hiccups, and choking are a legacy of our “fishy” ancestry.

Bird biomechanics 2

On Swift Wings

What airplane designers could learn from the shape-changing wings of birds



An Internet guide to the evolution of plants

Lethal Fuzz slide show

Lethal Fuzz

Toxic hairs enable some caterpillars to venture forth in conspicuous processions.

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Recent Stories

Uneven handedness

A visual atlas of solifuge jaws enables research on these poorly-understood arachnids.

Frogs, like humans, irrationally switch their preferences.

Phytoplankton blooms gain nutrients from glacial melting.