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Reassuring evidence on acetaminophen's safety in pregnancy keeps growing, with another study that compares siblings with different prenatal exposures.

New AI models are accelerating the game of cat-and-mouse as cybersecurity experts try to keep ahead of would-be hackers. An AI expert explains the risks.

The enormous deep-sea cousins of your garden's pill bugs can go five years without food. A gene they pilfered from bacteria may be part of the secret.

Newborn mice neurons can snap both DNA strands to migrate, then repair the breaks within a day. The process may be a normal part of brain development.

Iron and hydrogen peroxide trigger cell death via ferroptosis, which cascades killer molecules through the population, causing mass die-offs of algae.

Scientists thought angiosperms didn't use animals to spread seeds until after the Age of Dinosaurs. Fossilized fruits from these plants challenge this idea.

Archaeologists have unearthed new evidence that indicates hominids used fire up to 1.79 million years ago.

The organic molecules could come from life or from ordinary chemistry -- only samples returned to Earth can settle it.

Researchers were unsure whether alpha particles would aid or hinder fusion. Simulations suggest they help, by dampening turbulence.

A prehistoric scorpion was the largest ever to exist, and it may have preyed on land and freshwater species.