When California declared the San Bernardino kangaroo rat an endangered species recently, conservationists rejoiced. The state designation seemed to promise stronger protections for the tiny, ...

Researchers have identified the mechanism for why and how one brain region differs in size between male and female rats. The study found that immune system cells in the brains of females consume and ...

The odors that newborn rats are exposed to appear to govern the development of synapses that carry information into the rat olfactory cortex, the seat of odor perception, researchers report in Neuron ...