North America Has Only 1 True Species of Wolf, DNA Shows

DNA tests of wolves across North America suggest that there is just one species of the canid: the gray wolf. What's more, populations of red wolves and eastern wolves, thought to be distinct species, are actually just hybrids of gray wolves and coyotes that likely emerged in the last couple hundred years, the study found. The findings, published in the journal Science Advances on Wednesday (July 27), could have implications for the conservation of wolves considered endangered in the United State