What's up in

behavior

Photo of Physarum Polycephalum
cognitive science

Slime Molds Remember — but Do They Learn?

Evidence mounts that organisms without nervous systems can in some sense learn and solve problems, but researchers disagree about whether this is “primitive cognition.”

Photo of ants holding larvae.
evolution

The Elusive Calculus of Insects’ Altruism and Kin Selection

How the ultra-cooperative behavior of ants, bees and other social insects could have evolved continues to challenge formal analysis. But a new theory about hedging bets against nature’s unpredictability may change the math and shift the debate.

genetics

In Bees, a Hunt for Roots of Social Behavior

By comparing the genomes of social and solitary bees, scientists hope to uncover the basis for communal behavior.