As organisms develop from embryos, groups of cells migrate and reshape themselves to form all manner of complex tissues.

Over 150 years ago, a fossilized organism known as Prototaxites emerged as an enigma regarding what early land life may have ...

A major event in the evolution of organisms on earth was the development of complex, multicellular life forms made of eukaryotic cells, which are thought to have come from prokaryotic cells. Studies ...

Learn how one-celled organisms, or single-celled organisms, helped build complex life.

Over 3,000 generations of laboratory evolution, researchers watched as their model organism, 'snowflake yeast,' began to adapt as multicellular individuals. In new research, the team shows how ...

A new study shows that multicelled organisms like the metazoan daphnia (pictured) require a tenfold increase in energy compared with protists for their growth, maintenance and survival. The high cost ...

Scientists at Nagoya University in Japan have identified the genes that allow an organism to switch between living as single cells and forming multicellular structures. This ability to alternate ...

Life and death are traditionally viewed as opposites. But the emergence of new multicellular life-forms from the cells of a dead organism introduces a “third state” that lies beyond the traditional ...

While mirror bacteria may sound like a fun time, a group of 40 renowned scientists conclude it is probably not worth the risk.

Learn about Prototaxites, a bizarre group of prehistoric organisms that fall within an unknown lineage of extinct life.

Life and death are traditionally viewed as opposites. However, the emergence of new multicellular life forms from the cells of a dead organism introduces a “third state” that lies beyond the ...