You can clip them yourself with clippers bought from a pet store, or a vet will do them.
Added: If you do not know how to do this it is recommended that you take the dog to a groomer or vet and let them do it. This can cause serious harm to your dog if you do not know what you are doing or looking for.
No.
Breeds such as Labradors, Rottweilers, Dobermans, and Boxers are known to have black nails. The color of a dog's nails is often related to the pigmentation of their skin, so dogs with darker coats are more likely to have black nails.
dogs
Well, they should always be short for safety reason. But if you should let them grow, cut them after they before they become sharp enough to cut. (and for the safety of your pet you should file its nails)
yes, dogs remember (on their short term memory) 16 minuets. Cats remember (once again, on their short term memory) 16 hours.
The best way to keep a Great Dane's nails short is to take him/her to a dog groomer at least once a month. If you can't afford a dog groomer, you can purchase nail trimmers for dogs at a local department store or pet store. If you decide to trim his/her nails on your own, be careful not to cut them too short, and you should trim Great Dane nails at least once a month.
You could cut a small dogs nails with human nail clippers. Larger dogs nails would not fit inside the clipper so it wouldn't work. It is better to buy a set of clippers made for dogs though. They are made specifically for dogs nails and will work better.
Either the dog has injured it's paws or it has gotten into something bloody. Sometimes a dogs paws will bleed if their nails are ground too short and the quick is exposed. Sometimes the pads will become abraded and bleed if the dog has run on rough dirt or pavement too much. Their could be cuts on it's feet.
they are called nails
yes
All breeds may have black nails. Usually, dogs get black nails when they are not take care of properly.
c You could give it something to scratch on or believe it or not, even resort to a cat scratching post. It will stop them from ruining your furniture AND help their nails stay short +they'llhave something fun to do. You could also do nail filerthing'son them or just get thescissors out and give them a clip. But be careful if your dog is a fidget.