As creatures made up of trillions of cells, it’s easy for us to look down on single-celled organisms, but new research from Harvard suggests that some of them may be capable of more complex ...

Slime mold is one of the strangest organisms on Earth. It has no brain, no nervous system, and yet it can solve complex problems that seem to require intelligence.

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 ...

A widespread bacteria called "soap scum" grows in Yellowstone National Park's thermal pools that on the surface doesn't seem ...

Being single-celled doesn’t necessarily doom a creature to a simple life. A fresh look at a long-dismissed, century-old experiment suggests that so-called primitive organisms can behave in ...

The diversity of unicellular eukaryotes covered in the study, with their nucleus (blue) and microtubule cytoskeleton (magenta) stained. These organisms are so distantly related to each other as they ...

Dec. 13 (UPI) --Scientists have long wondered why the planet's first complex organisms emerged in the cold, dark depths of the ocean, where food and sun are in short supply. Now, researchers at ...

Researchers find that oxygenation of Earth's surface is key to the evolution of large, complex multicellular organisms. If cells can access oxygen, they get a big metabolic benefit. However, when ...

Why did the first big, complex organisms spring to life in deep, dark oceans where food was scarce? A new study finds great depths provided a stable, life-sustaining refuge from wild temperature ...