Lake Huron discovery believed to be prehistoric hunting tool

MICHIGAN -- A piece of wood was found at the bottom of Lake Huron, but it's not just any piece of wood.

University of Michigan explorers say it is 8,900 years old. That means the five-and-a-half foot-long pole is prehistoric.

Researchers say its evidence of what hunters used to catch their prey. The discovery was made this past summer and was just reported this week by the university.