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(Jim and Jamie Dutcher / NGS Image Collection)

Wild Things: Life as We Know It

Wolves, hibernating animals, spitting cobras and more

Sleep It Off

Nestling in burrows, tree holes or caves conserves energy and may buffer these species against environmental change
(Maura McCarthy)
Slugabeds, take heart: researchers in Norway and Finland found that animals that hibernate or hide are less likely than other species to be listed by the World Conservation Union as endangered or threatened. Nestling in burrows, tree holes or caves conserves energy and may buffer these species against environmental change.

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