Three genetically engineered wolves that may resemble extinct dire wolves are trotting, sleeping and howling in an undisclosed secure location in the U.S., according to the company that aims to bring back lost species.

The wolf pups, which range in age from three to six months old, have long white hair, muscular jaws and already weigh in at around 80 pounds (36 kilos) — on track to reach 140 pounds (63 kilos) at maturity, researchers at Colossal Biosciences reported Monday.

Genetically engineered wolves resemble a species that died out more than 10,000 years ago, but experts say there's more to it than that.{ai:summary}<p>Three genetically engineered wolves, resembling extinct dire wolves, are currently being raised in a secure location in the U.S. These pups, aged three to six months, have long white fur and muscular builds, weighing approximately 80 pounds and expected to reach 140 pounds as adults.</p><p>Colossal Biosciences, the company behind this project, aims to revive lost species through genetic engineering. #science</p>

Scientists have revived the extinct dire wolf — sort of

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