Related topics: brain · memory · neurons · hippocampus

Naked mole rat found to defy Gompertz's mortality law

A team of researchers at Google-owned Calico Life Sciences LLC has found that the naked mole rat defies Gompertz's mortality law. In their paper published in eLife, the group describes their study of the unusual-looking rodent ...

EU releases all data on GM corn linked to cancer

The EU's food safety agency challenged its doubters on Monday, making available all the scientific information used to clear a genetically modified corn which a French researcher had linked to cancer.

Toxic toll of rat poison on birds revealed

Rats might not be everyone's cup of tea, but you might want to think twice about reaching for the rat poison next time you come across one. While rat poison is brilliant at killing rats, it also spells danger for a whole ...

In the battle of cats vs. rats, the rats are winning

The first study to document interactions between feral cats and a wild rat colony finds that contrary to popular opinion, cats are not good predators of rats. In a novel approach, researchers monitored the behavior and movement ...

Study warns that snake fungal disease could be a global threat

New research suggests that a potentially fatal snake fungus found in several species in the United States and three in Europe could be global in scale. The study, published today in the journal Science Advances, shows that ...

Why mole rats are more flexible than we previously thought

One of the most interesting facts about mole rats - that, as with ants and termites, individuals specialise in particular tasks throughout their lives - turns out to be wrong. Instead, a new study led by the University of ...

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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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