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

Too much of a good thing is no good at all. Living organisms enjoy sunlight -- in fact, many need it to stay alive -- but they tend to avoid light that is too bright. Animals go to their shelter, ...

Under microscopes, scientists found that giant single-cell organisms were able to vacuum up more food when they are stuck together. By Jack Tamisiea For a creature made up of only a single cell, the ...

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 ...

Though they live only a few hours before dividing, bacteria can anticipate the approach of cold weather and prepare for it. The discovery suggests that seasonal tracking is fundamental to life. Every ...

Too much of a good thing is no good at all. Living organisms enjoy sunlight – in fact, they need it to stay alive – but they tend to avoid light that is too bright. Animals go to their shelter, humans ...