What once seemed like a hasty mistake in gene transcription turns out to be a useful program for a developing fly embryo.

The same behavior that drives fruit flies to interrupt your picnic helps scientists understand how animals use sensory inputs to make decisions.

Caltech scientists have now identified the complex role a particular protein plays in helping stem cells develop into T-lymphocytes, powerful immune cells.

Male fruit flies display aggression in a manner similar to humans. Now, Caltech scientists have shown how the flies' threatening behavior is encoded in their brains.