A new study from two Museums of Natural History uncovered that two-thirds of dog breeds have detectable wolf DNA, from chihuahuas to Arctic sled dogs.

About two-thirds of modern dog breeds carry some wolf ancestry introduced within the past few thousand years.

Wolf DNA seems to have influenced the size, smelling power and even personality of modern dog breeds, scientists said.

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 ...

A biotech company says it has bred three animals with key physical features of the dire wolf — a species that has been extinct for more than 12,000 years. Colossal Biosciences says it used novel ...

A company owned by a wealthy businessman re-creates an extinct apex predator and lets it roam on a private ecological preserve. That’s no longer just the plot of a 1990s science fiction movie.

Wolves and dogs don’t normally breed in the wild, largely because wolves are so territorial. But an exception has been found. While wild dog-wolf hybrids had previously only been suspected through ...