Rats, Long-Evans

**Definition:** An outbred strain of rats developed in 1915 by crossing several Wistar Institute white females with a wild gray male. Inbred strains have been derived from this original outbred strain, including Long-Evans cinnamon rats (RATS, INBRED LEC) and Otsuka-Long-Evans-Tokushima Fatty rats (RATS, INBRED OLETF), which are models for Wilson's disease and non-insulin dependent diabetes mellitus, respectively.

**Tree numbers:** - B01.050.150.900.649.313.992.635.505.700.500

**Synonyms:** - Long Evans Rats - Long-Evans Rat