BILLINGS, Mont. (AP) — Surveys show that many people who visit Yellowstone National Park hope to see wolves.

Park interpreters annually talk to anywhere from 30,000 to 50,000 people a year about wolves.

But a Montana biologist provides a way for wolf enthusiasts to learn the lives, pedigrees and genealogy of the wolves.

Jim Halfpenny is founder of the Yellowstone Wolf Genealogy Family Tree.

Halfpenny started recording the lineage of Yellowstone's wolves when they were first reintroduced to the park in 1995 and 1996.

The information is available online at www.wolfgenes.info as well as Ancestry.com.