A pathway involved in the adaptive immune system, a relative newcomer in the world of pathogen defense, may have a more ancient role in protecting cells from invading viruses.

Researchers disentangle complex connections among vegetation, herbivores, and dung in the South African savanna.

Long-lived species decrease their reproduction more than short-lived species in response to lower-than-normal precipitation, and thereby gain a survival advantage, a study finds.

The same toxin targets different receptors in prey and conspecifics to deliver either a lethal or non-lethal blow.

After weeks of training, the muscles of two macaques exhibited greater responses to stimulation of the reticulospinal tract in the brain stem than they had before, suggesting that strengthening the neural pathway is key to getting stronger. 

A study in two macaques reveals the importance of increasing connectivity between muscles and the reticulospinal tract that runs from the brain stem down the spinal cord.

Comparing the brain scans of high-impact rugby players with those of athletes in noncontact sports, such as rowing and swimming, revealed tiny, yet significant, differences in the brain’s white matter.

Patterns of neural activity known as alpha waves, long thought to originate in the thalamus, may actually stem from a different brain region entirely.

Two gene variations might help explain why some people experience chronic wounds.