Dire wolves might sound like something out of fantasy fiction – especially popularized by the Game of Thrones series – but they were very real creatures that once roamed North and South America.

For over 200,000 years, dire wolves roamed across North America—from southern Alberta, Canada to Florida, and even down into Chile. The ancient animals were megafauna hunters, ultimately disappearing ...

Their names are Romulus, Remus and Khaleesi, and they’re the first dire wolves to walk the Earth in over 10,000 years — or so one biotech company and a flurry of recent headlines say. On April 7, ...