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puh · Glis glis
A grey, squirrel-like, nocturnal rodent of beech and oak forests, famous for sleeping away more than half the year in deep hibernation.
Identification & best seen
Soft grey fur, big dark eyes and a bushy tail; strictly nocturnal.
Habitat & where to see
Mature beech and oak woodland, sometimes attics and huts.
It can hibernate for seven months or more — among the longest sleeps of any mammal.