Friday, August 30, 2013

Spines of a hedgehog

Spines of a hedgehog by Swamibu
Spines of a hedgehog, a photo by Swamibu on Flickr.

Via Flickr:
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Spines of a hedgehog.

Hedgehogs are easily distinguished by their spines, which are hollow hairs made stiff with keratin. Their spines are not poisonous or barbed and, unlike the quills of a porcupine, cannot easily be removed from the animal.

All hedgehogs are primarily nocturnal, although different species can be more or less likely to come out in the daytime. The hedgehog sleeps for a large portion of the daytime either under cover of bush or grass or rock or in a hole in the ground.

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