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 »

Counting bugs in Panama

Counting bugs in Panama

Life is biology is species: But how many species live on Earth? About six million arthropods (insects, spiders and crustaceans), says a More »

Love life of the firefly

Love life of the firefly

An alluring flash pattern is only the first step in firefly reproduction. Females actually pay more attention to the “nuptial gift” 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 »

Flight without wings

Flight without wings

Scientists thought wings were the first evidence of flight. But plenty of falling ants can glide back to “their” tree to avoid being 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 »

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 »

Celebrating Darwin and evolution

Celebrating Darwin and evolution

The theory of evolution is 150 years old, but forever young. We examine proofs for evolution, and four cool studies showing just how More »

Caterpillar camouflage

Caterpillar camouflage

Presto-chango! Caterpillar larva looks like a bird dung — and then like a leaf. New study points a finger at hormonal balance… More »