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

Evidence was found in marine sedimentary rocks near Gabon in Central Africa. A team of international researchers has challenged the long-held belief that complex life forms first emerged on Earth 635 ...

A newly identified class of RNA molecules has been discovered in bacteria living inside the human body. These circular ...

Creating artificial life is a recurring theme in both science and popular literature, where it conjures images of creeping slime creatures with malevolent intentions or super-cute designer pets. At ...