Woolly mouse

Woolly mouse
OrganismMus musculus
ModeGenome editing
DeveloperColossal Biosciences
Trait(s) conferred
  • Woolly coat
  • Elongated hair
  • Golden-brown fur
  • Cold tolerance
  • Curly whiskers

The woolly mouse refers to a variety of genetically modified laboratory mice developed in 2025 by Colossal Biosciences as part of efforts toward the de-extinction of the woolly mammoth. The mice feature mammoth-inspired traits which include woolly coats and other genetic modifications aimed at cold tolerance.[1][2]

  1. ^ Davis, Nicola (March 4, 2025). "Scientists aiming to bring back woolly mammoth create woolly mice". The Guardian. ISSN 0261-3077. Retrieved March 4, 2025.
  2. ^ "Scientists genetically engineer mice with thick hair like the extinct woolly mammoth". AP News. March 4, 2025. Archived from the original on March 4, 2025. Retrieved March 4, 2025.

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