Mice also dwell on the ground but have less specific habitat preferences. Distinguishing between rat and mouse droppings can help with identification. Brown rat droppings are dark brown and ...

The rat race Meaning: an unpleasant ... the cops were playing cat and mouse with the jewel thieves. In use: Mrs Fong is leaving a trainee teacher in charge while she’s on holiday, but you ...

More details of these projects have been published elsewhere 2. Table 1 Current rat genome statistics compared to mouse and human a Full size table Genome upgrade in 2008. The extra sequence data ...