By Melissa Cronin
For such spiky little critters, hedgehogs can be pretty cute. This is never more evident than when they're being tickled. Just look at this guy.
This behavior is called "uncurling" — a nervous hedgehog will be curled up in a tight ball. A hedgehog enjoying a good scratch will uncurl.
Some hedgehogs will uncurl immediately, ready for a massage.
A relaxed hedgehog will allow you to pet him without curling up and hiding his face.
Just try not to melt...we dare you.