Capybaras and crocodiles often rest peacefully together, but their apparent friendship comes down to prey size, hunting risks and food availability.

Spotted bats in an Arizona cave share maternal DNA with bats that died there 2,100 years ago, while the Southwest holds most of their variety.

Even healthy cats can carry Giardia without symptoms. A study of 157,000 samples found some infections involve types that can infect humans.

Gut bacteria may have accompanied humans for thousands of years, but many species are missing from industrialized populations.

A NASA astronaut captured an ancient rock formation in Madagascar made of the same type of rock that covers much of the Moon's bright highlands.

Even when sitting completely empty, older air fryers can leak volatile organic compounds and ultrafine particles.

A geologist found an undiscovered meteorite crater in Western Australia on Google Earth in 2007. Later drilling confirmed its iron meteorite origin.

A new plant-based therapeutic food made from crops grown in Kenya offers a promising alternative to imported treatments for childhood malnutrition.

A restaurant study reveals how a simple change in sauce placement can make the same meal appear healthier, even when the food itself stays the same.

A 15-year study links parenting behaviors at age three to how children's brains respond to rewards throughout adolescence.

Scientists warn that polar oceans are being overlooked in climate protection efforts, despite their vast potential to store carbon and support marine biodiversity.

Scientists used AI to uncover overlooked wildlife interactions in millions of public observations, revealing valuable data for conservation.

A yeast found by accident may help keep spotted-wing fruit flies away from ripe fruit and stop them from laying eggs there.

A Brazilian study links school bullying and cyberbullying, with greater emotional difficulties among teenagers involved in both settings.

ESA's new Sentinel-3C satellite reveals Italy's snow-covered Alps, colorful coastal waters, and diverse landscapes in a stunning first image.

At Miseeda, Sudan, a 7th-century church was built around a life-size rock carving that may show a Kushite ruler and mark an ancient border.

A map of groundwater depletion in 40 global hotspots runs far deeper than earlier estimates, and farm irrigation drives the steepest water losses.

New research reveals how the forever chemical PFOS disrupts a key immune protein, allowing flu and other viruses to multiply more easily.

Tsunamis move the whole ocean, not just the surface. Flume tests and a rare satellite pass show how they start, how fast they travel, and why they grow at the coast.

A new study finds that invasive Burmese pythons in the Everglades can spread native and invasive plant seeds, adding to their ecological impact.