It’ll help unlock mysteries about these iconic apex predators – explaining their “superpowers” like wound-healing and long lifespans – and why they’ve thrived more than 400 million years.

Earth’s atmosphere contains about 21% oxygen today. Plants produce it, and animals – including humans – breathe it. Ancient rocks provide clues about when the oxygen in Earth’s atmosphere began to arise.

Heightened volcanic activity in the Nevados de Chillán prompted Chilean authorities to issue an orange alert in anticipation of an eruption.

New research suggests that stripes help zebras evade biting flies and the deadly diseases they carry. Hear from the scientists who led the study.

Cracks growing across the Brunt Ice Shelf are poised to release an iceberg about twice the size of New York City. A scientific presence on the ice shelf since 1955 has an uncertain future.