You can't make it unless you are in Creative
There is not much to do with a dragon egg. If you know how to turn it into a collectible item, the only thing you can really do with it is keep it in a safe place such as in an item frame on top of your fireplace as a souvenir saying you have beaten the Ender Dragon.
You right click it like you do with any block
(Are you joking)
You left click your mouse. (But some eggs don't spawn on peaceful so make sure you switch you difficulty)
Play on creative and you get spawn eggs to spawn every mob in the game apart from enderdragon and wither
You cannot spawn any egg (besides a regular egg) in vanilla minecraft without going into creative mode
To get eggs that spawn animals in Minecraft PE on Survival Mode pawn use the command /give.
you use some kind of mod, or throw eggs until you spawn a chicken
No, currently in vanilla Minecraft dinosaurs are not in the game. This means there are no spawn eggs for them.
You can't, unless you use mods or spawn eggs.
Minecraft originally came out with spawn eggs in a pre-release - 11w49a. The update was for Minecraft 1.1, in case you are looking for an actual Minecraft update release.
You can find eggs, those can spawn a chicken but not all eggs do, or load new chunks and they will spawn, just not where you want
Yes you can. You could also spawn them in using the spawn eggs.
if your lucky the game just spawns a bunch for you. or you can get spawn eggs to spawn the shheps
They spawn naturally
You can't. They can only be spawned in by a player in creative mode. (Although some mods do add crafting recipes for spawn eggs)
If you mean "throw" like with chicken eggs, then no, you can't.
by using spawn eggs or mob spawners with a mob in them