dreaming dogs

last nite, Comet was having his dreams again as he was fidgeting and making sounds. So i was trying to wake him up by touching his tail and hind legs. Instead he attempted to bite at me.

Lesson learnt: Never try to awake a dog having a nightmare.... he won't know if he was still in a dream or not...

that being said, what do dogs dream? do they dream in colors? or smells? what kind of dreams constitute as nightmares to them?

hmmmmm....