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 ...

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 ...

All the living things that we can see evolved from those that we can’t. Every human, bird, tree, and flower can trace its ancestry across a few billion years back to microscopic, single-celled ...

The typical human digestive tract is home to one of the densest communities of microorganisms on the planet. Bacteria dominate researchers’ attention, with the roles of other members of this ecosystem ...