Dr Chris Faulkes’ research into evolution and biodiversity led to the discovery of two new mole-rat species in Tanzania. His team’s assessment for one of the species to be given ‘Endangered’ status, ...

“We're big, we're diverse ... Then, the most prevalent species was the brown rat or Rattus norvegicus. It is now the only rat ...

Such cold has, yes, a chilling effect on the Big Apple's notorious rodents ... New York City's wild rat species — Rattus norvegicus, also called the Norway rat or brown rat — doesn't hibernate ...