Wolves on Island Royale, Lake Superior. Fifty-six percent of wolves' genes on the island can be traced to one wolf (known as the "Old Gray Guy," above center) who in 1997 walked across 15 miles of ice to get to the island. Read about it at nytimes.com.
Wolves on Island Royale, Lake Superior. Fifty-six percent of wolves' genes on the island can be traced to one wolf (known as the "Old Gray Guy," above center) who in 1997 walked across 15 miles of ice to get to the island. Read about it at nytimes.com.