Colossal Biosciences engineered mice with long, woolly hair by editing seven genes. Scientists see potential for conservation but doubt true "de-extinction." The company may apply the technique to ...

Signs of illness, including ruffled fur and lethargy, appeared shortly after the mice consumed the milk. Researchers euthanized the mice on day 4 of the study and studied where the virus was found ...

Colossal Biosciences, the company aiming to resurrect the extinct species through genetic engineering, has now made mice with “mammoth-like” fur, each with up to five genetic changes.

the creation of transgenic mice with long, luxurious golden locks of tufted fur inspired by the coats of woolly mammoths. They’re called Colossal woolly mice. And yes, they are cute to boot.

we orally inoculated BALB/cJ mice with 50 μl (3×10 6 pfu) of sample NM#93. The animals showed signs of illness starting on day 1, including ruffled fur and lethargy. All the animals survived ...