Mammoths of the Midwest

Mammoth mammoth bones are being retrieved from an Iowa family's backyard after their accidental discovery of a four foot femur.

The bone was discovered two years ago, and now the family's quiet home in Oskaloosa has turned into a bustling excavation site, where the bones are kept in the living room, according to ABC-affiliate ABC5-WOI in Des Moines. The University of Iowa Museum of Natural History reportedly has stepped in to oversee the research.

“The size of this discovery is quite uncommon,” Sarah Horgen, the museum's education coordinator, told ABC News. “It’s pretty exciting-–partially because the mammoth is being discovered where it died. And we know that because we’re finding very large bones right alongside very small bones.”

The mammoth bones, reported to be at least 12,000 years old, were found about 10 feet underground. "The conditions of the bones were ideal," archaeologist Marlin Ingalls of the Iowa State Archeologist's office told The Huffington Post.