Mapping evolution

Mapping evolution

Research in salty ponds shows how one species of pupfish becomes three — in a few cases. More important, it shows why this did not More »

Odder than odd!

Odder than odd!

Dig the dung beetle. Sample the belly button. Tilt your brain — and see what happens. Watch bees cook their enemies. Drive through the More »

First forest: New details emerge

First forest: New details emerge

Returning to the site of a classic “first forest” site, New York scientists have found extra complexity: three fossilized trees-like More »

Dr. Darwin teaches robot!

Dr. Darwin teaches robot!

A crash course in “sink or swim” teaches computerized robots to adapt to changing circumstances. When taught by “directed evolution,” More »

Enter the realm of the ants

close up of ant faces with revolutionary-themed background

In many environments, ants know the tricks of survival, even domination. Skeptical? Ask the fire ant. Ask the army ant. A series of More »

Snot Otter

Snot Otter

The snot otter, more officially known as the hellbender salamander or Cryptobranchus alleganiensis, is North America’s most super-sized

Maggots, leeches, parasitic worms

Maggots, leeches, parasitic worms

Meet three gross “biotherapies”: Leeches suck blood after surgery. Maggots clear dead tissue from wounds. Parasitic worms fight More »

Tracking traveling toads

Tracking traveling toads
Do new species arise because so many niches are available in a new habitat? Or do they arise because newcomers have multiple talents More »

Fish phishing attack explained!

Fish phishing attack explained!
Cleaner fish remove parasites from other fish. Why do males punish females who eat the wrong food from their host? A clue to the More »

Luminescent fungus

Luminescent fungus
A research trip to South America by a biology professor and colleagues from San Francisco State University has led to the discovery of

Animal arms race

Animal arms race

The struggle between predator and prey never ends. Bats invented sonar, and now some moths are fighting back. Check out the Why Files More »

How a fly detects a poison

How a fly detects a poison

Animals spend a lot of energy avoiding toxic chemicals in their food. A new type of gene that does this in fruit flies reinforces the More »