Malham Cove, Yorkshire Dales
Malham Cove, Yorkshire Dales National Park, England. This curving limestone cliff feature was formed by glacial action. It used to have a waterfall running over it, but the stream now goes underground before emerging to form the river seen in the foreground. Photographed in May.
© BOB GIBBONS/SCIENCE PHOTO LIBRARY
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Glacier crevasse, Canada
Glacier crevasse. Crevasse in the surface of the Tellot glacier. Crevasses form in glaciers as the ice cracks when the glacier moves. The stresses put on the ice as it flows down the mountain cause cracks like these to appear and disappear over time. Some crevasses can be extremely deep. The Tellot glacier is located in the Waddington Range of the Coast Mountains, British Columbia, Canada.
© DAVID NUNUK/SCIENCE PHOTO LIBRARY
Red lantern banksia (Banksia caleyi), a pyrophile which opens its cones to release seeds
Red lantern banksia (Banksia caleyi), a pyrophile which opens its cones to release seeds only after a fire, Stirling Range National Park, Western Australia, October 2002.
© Jiri Lochman / naturepl.com
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