A team of scientists digging at a Mahaska County mammoth site have a theory on why the bones they're finding are so spread out and at many different depths. University of Iowa Museum of Natural History education coordinator Sarah Horgen says the land where a local farmer found the bones has shifted significantly since the mammoth died.

Horgen says flooding probably washed some of the bones away from each other. A slump of land also might have fallen, burying some bones deeper than others.

For more on what the team of naturalists, scientists, educators and volunteers have been up to at the mammoth site, tune into our midweek newscast next Wednesday at 6:00PM. You can find it right here on the website.

The picture above is one of the mammoth's ankle bones scientists excavated Friday.