An curved arrow pointing right. A single celled organism eating its prey, an inside view of a termite's gut, and a parasite going 'Alien' on its host took top honors in Nikon's Small World in ...

The cell membrane of this organism is folded up into a series of pleats that can only unfold and refold in one way, Eliott Flaum at Stanford University and her colleague Manu Prakash have ...

Bacteria are among the smallest living things. A single bacterium consists of just one cell. Not all bacteria are harmful. There are different unicellular organisms and types of bacteria.

These specialized structures are enclosed by double membranes, and they are believed to have originated back when all living things on Earth were single-celled organisms. At that time, some larger ...

3,800 mya: Bacteria diversify Single-celled bacteria are the oldest-known living organisms. Most bacteria reproduce by making carbon copies of themselves through a process called fission.

Prokaryotes, which include bacteria and single-celled microorganisms called Archaea, usually pass their chromosomal DNA on to their offspring asexually. In other words, a bacterial cell reproduces ...

The fossil offers new insight into the transition of single celled organisms to complex, multicellular animals. Modern single-celled holozoa include the most basal living animals and the fossil ...