Great danes like all dogs do have backbones.
A Great Dane (dog) has a backbone just as do all vertebrates.
the dog itself is a Great Dane. Plural (more than one) it is Great Danes.
no because, the great danes are much bigger than the poodles
Yes, both my male and female great danes catch and fetch frisbees.
Great Danes are not natuarlly viscous dogs. They can be trained for many jobs, including guarding.
Great Danes are believed to be originated in Germany by the Alans from Mastiff's and probably wolf hounds.
no there not
No, they do not.
Very!
Sleep!
mammal
nothing
Usually , no. Most Great Danes are simply kept as pets and companions and wouldn't be used to hunt anything.