Stromatolites—and their close relatives, microbial mats—could be mistaken for what seems like a bunch of old dark rocks. But ...

Single-celled archaea microbes pack their DNA into flexible coils that expand and stretch much like a Slinky does. This kind of molecular gymnastics had never been seen before in other organisms and ...

Existing bacteria and archaea still our universal common ancestor’s ribosomal hibernation defense mechanism when nutrients are scarce.

Sperm and egg cells, or gametes, are unusual. Egg cells are some of the largest cell types, and sperm are some of the smallest. In humans, these haploid cells come together to form diploid cells. It's ...

Archaea are a relatively recently discovered group of microorganisms that occupy their own branch on the tree of life. Though similar in some ways to bacteria, they are not the same. Researchers have ...