Men have two birth control options: condoms and vasectomies. Why has it taken so long to develop more contraceptives?

A compact method of detecting neutrinos provides new tests of physics theories and could lead to new reactor-monitoring methods.

Scratching an itch can bring a contradictory wave of pleasure and misery. A mouse study on scratching, reported in the Jan. 31 Science, fleshes out this ...

Many blacktip reef sharks in French Polynesia are commonly fed by tourists. But the low-quality diet is changing the sharks’ behavior and physiology.

Samples from NASA’s OSIRIS-REx mission show the asteroid Bennu had organic molecules and minerals and possibly salty water and other life ingredients.

A recent flurry of executive orders and surprise actions by the Trump administration have roiled WHO, the CDC and the international public health community.

Casarabe people grew the nutritious crop year-round on savannas thanks to networks of drainage canals and ponds.

Mapping fish migration routes and identifying threats is crucial to protecting freshwater species and their habitats, ecologists argue.

Weather data show how humankind’s burning of fossil fuels made the hot, dry, windy weather more likely, setting the stage for the Los Angeles wildfires.

Bats may broadcast their personalities to others from a distance, new experiments suggest, which could play into social dynamics within a colony.

Found in a roughly 350-year-old manuscript by Dutch biologist Johannes Swammerdam, the scientific illustration shows the brain of a honeybee drone.

After decades of study, scientists sound genuinely optimistic about the possibility of detecting primordial black holes, which might explain dark matter.