A dog learns to sit on command, a person hears and eventually tunes out the hum of a washing machine while reading … The capacity to learn and adapt is central to evolution and, indeed, survival.

A growing body of peer-reviewed research is building the case that single-celled organisms, creatures with no brain, no ...

Much more difficult is learning to connect different types of stimuli or events, and predicting that one is linked to another. Such associative learning was most famously demonstrated when Ivan Pavlov ...

A billion years ago single-celled organisms ruled the Earth. How did life get multicellular? Five simple organisms could have the answer Now multicellular creatures are everywhere, including animals ...

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 ...

Just as the human body serves as a habitat for bacteria and other microbes, diverse, tiny organisms known as protists host their own microbiomes. "We know there are many symbionts in the world, but it ...

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 ...

A globally distributed single-celled organism that occurs in harmful algal blooms has been found to exhibit an unusual organisation of photosynthesis. Researchers have taken a closer look at the ...