News tagged with rats

Related topics: brain , memory , neurons , hippocampus

Rare neurons enable mental flexibility

Behavioral flexibility—the ability to change strategy when the rules change—is controlled by specific neurons in the brain, Researchers at the Okinawa Institute of Science and Technology Graduate University ...

Jun 24, 2015
popularity 39 comments 0

Worms and germs lead to better immune function

A growing body of evidence in the medical community holds that greater diversity of bacteria and even worms in the digestive tract offers protection against a variety of allergic and autoimmune problems.

Apr 08, 2015
popularity 142 comments 1

Rat

50 species

Stenomys Thomas, 1910

Rats are various medium-sized, long-tailed rodents of the superfamily Muroidea. "True rats" are members of the genus Rattus, the most important of which to humans are the black rat, Rattus rattus, and the brown rat, Rattus norvegicus. Many members of other rodent genera and families are also called rats and share many characteristics with true rats.

Rats are typically distinguished from mice by their size; rats are generally large muroid rodents, while mice are generally small muroid rodents. The muroid family is very large and complex, and the common terms rat and mouse are not taxonomically specific. Generally, when someone discovers a large muroid, its common name includes the term rat, while if it is small, the name includes the term mouse - scientifically, the terms are not confined to members of the Rattus and Mus genera. Compare the taxonomic classification of the Pack rat and Cotton mouse.

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