Partial blue skies in the morning allowed many park visitors to ignore fires on the North Rim. By afternoon, ashfall made for ...

A bright red “sea toad” and an underwater mountain four times taller than the world's biggest skyscraper are among the jaw-dropping discoveries made by a team of deep-sea explorers in a single stretch ...

Oak trees change their fine roots and "energize" soil microbes by supplying them with a cocktail of small organic compounds, ...

Africa's tropical belt, defined by the Guinean forests of west Africa and the Congo Basin of central Africa, is globally ...

What's it like to see the world for the first time, with a fresh pair of eyes, from a completely different perspective? In ...