dune

Scientists at the University of California, Davis report the discovery of a previously unrecognized trapdoor spider that lives in California's coastal sand dunes.

Environmentalists warn that development projects threaten the region's unique mix of dunes, pine forests, gnarled cork trees and an endless patchwork of rice fields.

During the Martian winter, when temperatures plunge to around minus 120 degrees Celsius, ice accumulates on the dunes.

Training on his hometown’s sand dunes and in the Pacific Northwest’s windswept rains, Prefontaine broke national records at Marshfield High School and then at the University of Oregon.

Over the summer, he invited his teammates to the sand dunes in Manhattan Beach.