plural of rat-trap cheese

plural of western rat snake

A reeler-phenotype neuronal mutant rat.

Callistomys pictus, a spiny rat from Brazil.

plural of painted tree rat

The aquatic larva of a hoverfly in either the tribe Eristalini or the tribe Sericomyini, which breathes through a tail-like air tube.

plural of rat-tailed maggot

A kind of rat with no thymus and thus a severely compromised immune system, used in medical research.

plural of Rowett nude rat

An outbred rat used in medical research, white with a black or brown hood.