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 ...

Oxygen played a key role in the evolution of complex organisms, according to new research published in BMC Evolutionary Biology. The study shows that the complexity of life forms increased earlier ...

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 ...

Microscope image of the multicellular alga Streptosarcina arenaria, another terrestrial alga, which inhabits dry and tropical areas. (scale is 10 µm, corresponding to 0.01 mm). Credit: Tatyana ...

Scientists at Nagoya University in Japan have identified the genes that allow an organism to switch between living as single ...

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 ...

In a groundbreaking experiment, researchers have brought a mouse to life with the help of a single-celled organism that existed long before any multicellular animals walked the earth. Genetic research ...

RENO, Nev. — Perhaps you’ve read in a biology textbook that humans have the same number of genes as Caenorhabditis elegans, a worm used in scientific research. Perhaps you’d also like to believe that ...

Liquid samples of different algal species investigated in the study, all stored in the Culture Collection of Algae at Göttingen University. Of all the organisms that photosynthesize, land plants have ...

Of all the organisms that photosynthesize, land plants have the most complex form. How did this morphology emerge? A team of scientists has taken a deep dive into the evolutionary history of ...