Unless you've been eating something with a black food dye in it, black tongue may be a sign of an upper gastric bleed of some kind -- perhaps an ulcer. Look also for black, tarry stools and or "coffee grounds" in vomitus.
Check this one out with your dock -- GI bleeds can sometimes be life threatening.
Give it a scratch!
The pressence of a furry feeling on your tongue could mean that you need to brush your teeth and remember to brush your tongue as well. It can also mean that you are having an allergic reaction to a medication you are taking. Its always best to seek the opinion of your doctor.
Yes
black and furry
A spider with a black, furry belly is likely to be wolf spider. These spiders often have hair all over, but it can be more noticeable on the belly.
It sounds like you have thrush... go see a doctor!
furry
usually the colour of the tongue will indicate the health of the DS.Tongue should be pink.Brown patches indicate bowel problems. Also furriness,tongue should not be furry
Bacteria builds up after awhile, which results in the "fur" on your tongue. Also, shortly after eating sweet things, your tongue might burn because the acid in the candy/sweet thing is making your taste buds swell and sting. This usually only happens with sour candy, and the "furry tongue" can easily be reversed by scraping the "fur" off.
hairy tongue or furry tongue can be slang for oral thrush. Now thrush is a yeast infection that can be caught in many ways, I suggest you look it up if you wish to know more about that. .
big furry ones
they are black very furry fat and dangerous