Biologists are quietly rewriting what it means to be alive, and the human body has become one of their strangest frontiers.

CAPE CANAVERAL, Fla. (AP) — Ancient Mars may have had an environment capable of harboring an underground world teeming with microscopic organisms, French scientists reported Monday. But if they ...

Life’s leap from single-celled to multicellular organisms marks a pivotal moment in evolutionary history. This transformation laid the foundation for the complex life forms we see today. By studying ...

Despite being among the simplest forms of life on Earth, cyanobacteria are able to anticipate and prepare for the changing seasons based on the amount of light they are exposed to. It has been known ...