Bryan and Cherry Alexander / Tourist and Gentoo penguins (Pygoscelis papua) in blowing sand on Saunders Island, Falkland Islands, 2009.
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Charlie Summers / American Pika (Ochotona princeps) leaping from one alpine rock to another as it heads to its home carrying food for the winter months. Rocky Mountain National Park, Colorado, USA. August.
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Jeff Foott / Pika (Ochotona princeps) in Bridger National Forest, Wyoming Mountain Range, Wyoming, USA, June.
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Jeff Foott / Pika (Ochotona princeps)on hay pile, in Bridger National Forest, Wyoming Mountain Range, Wyoming, USA, June.
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Jeff Foott / Pika (Ochotona princeps) in Bridger National Forest, Wyoming Mountain Range, Wyoming, USA, July.
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Jeff Foott / Pika, (Ochotona princeps) bringing vegetation to Hay pile, in Bridger National Forest, Wyoming, USA, July.
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Jeff Foott / Pika (Ochotona princeps) carrying Hay Pile, in Bridger National Forest, Wyoming Mountain Range, Wyoming, USA, July.
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Jeff Foott / Pika (Ochotona princeps) in Bridger National Forest, Wyoming Mountain Range, Wyoming, USA, July.
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Jeff Foott / Pika (Ochotona princeps) in Bridger National Forest, Wyoming Mountain Range, Wyoming, USA, July.
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Jeff Foott / Pika (Ochotona princeps) in Bridger National Forest, Wyoming Mountain Range, Wyoming, USA, July.
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Jeff Foott / Pika (Ochotona princeps) yawning.Bridger National Forest, Wyoming Mountain Range, Wyoming, USA, June.
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Danny Green / Pika (Ochotona princeps) resting, Denali National Park, Alaska, USA, September
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Jeff Foott / Pika (Ochotona princeps) gathering plants to store for winter, Bridger National Forest, Wyoming, USA. August.
