A team of researchers has found that nocturnal lemurs thought to belong to different species because of their strikingly different coat colors are not only genetically alike, but belong to the same ...

Fresh from raising $200 million, Colossal Biosciences announced it has genetically engineered the Colossal Woolly Mouse, with a warm coat taken from the genes of the extinct woolly mammoth. Dallas and ...

According to the company, the woolly mice were generated by expressing traits crucial for mammoth de-extinction in living mice. They learned these traits by analyzing 59 woolly, Columbian, and steppe ...

As a boy, Clarence Cook Little kept mice as pets, but his hobby became serious inquiry when he began studying Mendelian inheritance of mouse coat color under William Castle at Harvard University.

In a preprint posted to bioRxiv last week (July 4), researchers at the University of California, San Diego, report using a CRISPR-Cas9 gene drive in mammals for the first time. Gene drives ensure that ...

Laboratory mouse pups are commonly weaned between postnatal day 21–28. Utilization of an exact wean date postpartum is a concrete metric for mouse colony management, but variation can result such as: ...