IDAHO FALLS – Scientists studying pack rat middens at the City of Rocks National Reserve in south-central Idaho have determined that the area’s iconic pinyon pine trees first arrived about 2,800 years ...

What makes the midden blob hard and incredibly long-lasting is pack rat pee. At the City of Rocks National Reserve, scientists studying middens have carbon-dated the contents of some middens to be ...

Berkeley - For at least a million years, owls throughout the West have been snapping up sagebrush voles and reducing them to gray pellets of fur, bones and teeth littering the foot of the roost.

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This is one case where a rodent’s penchant for hoarding, collecting and thievery has been turned into a scientific treasure trove of information. These treasure troves are being mined in particular at ...

This is one case where a rodent’s penchant for hoarding, collecting and thievery has been turned into a scientific treasure trove of information.