People compete by trying to outsmart their opponents as long as they win, but show random behavior, and neural signs of suppressing knowledge about opponents’ strategies, when they lose.

Gaining genetic control over neural modules that drive the grooming of each Drosophila body part reveals how mechanisms for selecting among competing behavioral choices are used to generate sequences of actions.

Residual activity from previous trials in a biophysical decision network model causes biases in choice behavior such that a previous response is more likely to be repeated.

Using novel approach to study real-time social interactions shows that mutual action visibility facilitates static and dynamic coordination in both species, but whereas humans employ dynamic turn-taking to equalize rewards, macaques, after training with a human, compete between themselves.

A first principles, neuro-computational framework proposes a path for the experimental dissection of neural circuit mechanisms of competitive selection across brain areas and animal species.

Nematode sperm respond to competitive environments by modulating cellular pathways involved in migration and storage to ensure their access to oocytes.

Caenorhabditis elegans egg-laying behaviour shows pronounced variation in natural populations, making it a promising model to investigate the microevolution of a simple neural circuit.

A single night of sleep deprivation suppresses fighting behaviors in male fruit flies, with consequent impairments in reproductive fitness.

A novel automated behavior analysis method for Hydra identifies pre-defined and new behavior types, and reveals a stable behavior repertoire.