In this Feb. 2025 photo provided by Colossal Biosciences a genetically edited mouse with long, thick, woolly hair at a lab in Dallas, Texas. AP Still, the refinement of precision ...

Scientists genetically engineer mice with hair like the extinct woolly mammoth Colossal Biosciences scientists nicknamed the extra-furry rodents as the "Colossal woolly mouse." ...

In this Feb 2025 photo provided by Colossal Biosciences are genetically edited mice with long, thick, woolly hair at a lab in Dallas, Texas. Colossal Biosciences via AP.

Uncredited. In this Feb 2025 photo provided by Colossal Biosciences are genetically edited mice with long, thick, woolly hair at a lab in Dallas, Texas.

In this Feb 2025 photo provided by Colossal Biosciences are genetically edited mice with long, thick, woolly hair at a lab in Dallas, Texas. Colossal Biosciences via AP.

In this Feb 2025 photo provided by Colossal Biosciences are genetically edited mice with long, thick, woolly hair at a lab in Dallas, Texas. Colossal Biosciences via AP.

National News Scientists genetically engineer mice with thick hair like the extinct woolly mammoth In this Feb 2025 photo provided by Colossal Biosciences are genetically edited mice with long ...

Scientists edited seven genes in mice embryos to create mice with long, thick, woolly hair. Skip to content. All Sections. Subscribe Now. 64°F. Sunday, June 29th 2025 E-Edition.

In this Feb 2025 photo provided by Colossal Biosciences are genetically edited mice with long, thick, woolly hair at a lab in Dallas, Texas. Colossal Biosciences via AP.

In this Feb 2025 photo provided by Colossal Biosciences are genetically edited mice with long, thick, woolly hair at a lab in Dallas, Texas. Colossal Biosciences via AP.

On Tuesday, Colossal announced that its scientists have simultaneously edited seven genes in mice embryos to create mice with long, thick, woolly hair. They nicknamed the extra-furry rodents as the ...