Cardiology

Don't overdo omega-6 fat consumption during pregnancy

In Western societies, we are eating more omega 6 fats, particularly linoleic acid, which are present in foods such as potato chips and vegetable oil. Other research has shown that linoleic acid can promote inflammation and ...

Health

Researchers document impact of coffee on bowels

Coffee drinkers know that coffee helps keep the bowels moving, but researchers in Texas are trying to find out exactly why this is true, and it doesn't seem to be about the caffeine, according to a study presented at Digestive ...

Neuroscience

What makes memories stronger?

A team of scientists at NeuroElectronics Research Flanders reports that highly demanding and rewarding experiences result in stronger memories. By studying navigation in rats, the researchers traced back the mechanism behind ...

Neuroscience

Resolving sex differences in psychiatric disorder risk

Male and female rats whose mother experienced a simulated viral infection during pregnancy display autism- and schizophrenia-like behaviors, according to a new follow-up study published in eNeuro. The researchers extended ...

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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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