There may be more bird species in the tropics than we know

Study of a perky little bird suggests there may be far more avian species in the tropics than those identified so far. After a genetic study of the White-crowned Manakin, scientists say it's not just one species and one ...

ESA orbiter will encounter Mercury October 1

The ESA/JAXA BepiColombo mission to Mercury will make the first of six flybys of its destination planet on 1 October before entering orbit in 2025.

Enzyme action movie shows how nature makes penicillins

Scientists who specialize in studying the atom-by-atom choreography of enzymes have revealed new insights into the function of isopenicillin N synthase, an enzyme needed to produce some of the world's most critical antibiotics.

Why has same-sex sexual behavior persisted during evolution?

Same-sex sexual behavior may seem to present a Darwinian paradox. It provides no obvious reproductive or survival benefit, and yet same-sex sexual behavior is fairly common—around 2-10% of individuals in diverse human societies—and ...

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