A biotech company made history with the birth of three genetically engineered wolves: What we know about these prehistoric ...

A gray wolf who was part of a group of wolves brought to Colorado earlier this year has died in a different state.

Dire wolves were much larger than the non-extinct gray wolf; they weighed anywhere from 130 to 150 pounds, stood about three feet at the shoulder and were about six feet long. Who are Romulus and ...