Colossal Biosciences Resurrects Long-Extinct Dire Wolf

Dire wolves went extinct around 12,000 years ago, at the end of the last ice age. Weighing around 150 pounds, they were about twice the size of today's gray wolves. Dire wolves roamed both North and South America, preying on ancient horses, camels, sloths, and bison.

Colossal Biosciences, the private company aiming to bring back from extinction the woolly mammoth, announced today that it had produced three dire wolf pups using genetic editing and cloning. The researchers at the company extracted and sequenced the genomes of dire wolves from a 13,000-year-old tooth from Ohio and a 72,000-year-old skull from Idaho...