Single-celled species that often stick together in colonies have researchers rethinking the origin of animals.

A billion years ago single-celled organisms ruled the Earth. Now multicellular creatures are everywhere, including animals ...

RFK Jr has vowed to find out what’s responsible, but scientists say he is ignoring answers from decades of research.

Birds in brightly lit cities sing for an average of 50 minutes longer than those in the darkest environments, starting their ...

Private companies can track many changes on Earth from space, but both public and commercial satellite missions are needed to ...