In a surprising finding, researchers have discovered that even though primates are "smarter" than mice, the rodents actually have more synapses per neuron.

Studying mice shows that evolution often works on the same genes in different populations when they're confronted with similar environmental conditions.

"Normally when we do these studies, we isolate the animals for their entire lives. This is not a good model for humans..."

The genome of the white-footed mouse could offer new approaches to stemming the spread of Lyme disease, say researchers.

Researchers have known about the path that sound takes through the mouse brain, but not how sound influences behavior. Now they've figured it out.