Researchers identified a signaling system in the brains of C. elegans which changes to redirect behavior when survival is at risk due to lack of food.
Evolution does select for loner behavior, at least in slime molds. Loners provide both an ecological and evolutionary way to diversify a genetic portfolio to ensure the survival of the social, collective behavior.
Compassion and helping care for their injured may have been key to Neanderthal survival, researchers report.
