Towering mounds: Can gophers be to blame?

A new computer analysis suggests centuries of rodent activity may have massively reshaped large regions of the landscape

By Beth Geiger, 14:27 PM January 17, 2014

Mima Prairie, Wash., hosts weird bumps that resemble a grassy sea of giant, half-buried basketballs. Big basketballs. Each mound is up to 2.5 meters (8 feet) high and 18 meters (60 feet) across. And since scientists first encountered this naturally wrinkled landscape, they have puzzled over what could have engineered its seemingly endless series of bumps. At last, a new study may have clinched the answer.  

Scientists used computers to calculate the ground-morphing abilities of gophers. The r...

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