Representatives of more than 180 nations are meeting to agree on protections for vulnerable species, taking up issues such as the trade in ivory and the demand for shark fin soup that is decimating shark populations.

A sick baby dugong whose fight for recovery won hearts in Thailand and cast a spotlight on ocean conservation has died from an infection exacerbated by bits of plastic lining her stomach, officials said Saturday.

The swimming section of a paratriathlon test event for Tokyo 2020 was cancelled Saturday due to high levels of bacteria in the water, the latest in a series of difficulties over water quality and temperature.

Japan insisted Friday it no longer hunts endangered sei whales in international waters, but faced accusations of still violating a wildlife treaty by allowing commercialisation of meat from past catches.

Colorado tightened its air quality regulations on Friday, requiring that at least 5% of the vehicles sold in the state by 2023 emit zero pollution.

NASA picked Alabama's "Rocket City" on Friday to lead development of the next moon lander for astronauts.

Stone tools uncovered in Mongolia by an international team of archaeologists indicate that modern humans traveled across the Eurasian steppe about 45,000 years ago, according to a new University of California, Davis, study. The date is about 10,000 years earlier than archaeologists previously believed.

In the battle of the sexes, males appear to have the innovative edge—from a genetic standpoint, at least. Scientists are finding that the testes are more than mere factories for sperm; these organs also serve as hotspots for the emergence of new genes, the raw material for the evolution of species.

Nanometers are one billionth of a meter, a metric typically used to measure molecules and scientific building blocks not visible to the human eye. Materials of tens and/or several hundred nanometers in diameter have unique properties, and thus have been widely used in diagnosing and treating various human diseases. One major challenge to use these nano-sized materials is how to deliver them into...

One of the greatest mysteries in condensed matter physics is the exact relationship between charge order and superconductivity in cuprate superconductors. In superconductors, electrons move freely through the material—there is zero resistance when it's cooled below its critical temperature. However, the cuprates simultaneously exhibit superconductivity and charge order in patterns of alternating...