It depends on the Type of dragon.
No they don't hatch.
They had eggs and the eggs cracked and a baby dragon was made :P
You can only hatch dragon eggs with a mod.
Dragon Cave revolves around grabbing and raising eggs. There are new eggs and abandoned eggs. The object is to hatch the eggs and raise them to adulthood.
They hatch up to 30 eggs
Yes.
no they lay leathery eggs
you either A. abandon some of the eggs B. hatch the eggs Or C. kill the eggs killing the egg will not remove it though you can adopt more after killing it you will have to look at it forever after
Sorry, but there is no dragon egg that does that. The eggs are for decoration, and has no effect on the dragon itself.
it is a place where you can adopt eggs and try to hatch them it is free and fun when your eggs are adults you can breed them to get new baby eggs
Dragon Cave is a game where users get eggs, and they have to get other people to click on the eggs so that they'll hatch into dragons and grow up.
Currently in the Vanilla release, dragon eggs do nothing, and are primarily used as an ornament.