Animal & human behavior

An algorithm for how ants create trail networks

Observing ants in the trees of a tropical forest, Professor Deborah Gordon recorded how, without a plan, the ants make and maintain their networks – and how they repair the network when it is ruptured.

Epiphany in the fish lab

Studying the brains of fish led undergraduate Danielle Katz in an unexpected direction – a degree in mechanical engineering.

Brain scans predict at-risk teens’ drug use two years later

Impulsive behavior in teens can go hand in hand with drug use, but the link is weak and doesn’t necessarily predict future behavior. A Stanford psychologist and colleagues think they can do better, using images of the brain.