Easter eggs do not exist in normal Minecraft, only as part of a mod
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.
No, currently in vanilla Minecraft dinosaurs are not in the game. This means there are no spawn eggs for them.
You can only hatch dragon eggs with a mod.
Kill the enderdragon.
Use eggs.
To get eggs that spawn animals in Minecraft PE on Survival Mode pawn use the command /give.
No
You can't until chickens are added. They are. I don't think you can get eggs....
they already bought minecraft.
There will not be a Minecraft two. Minecraft is still in development, and Notch is not planning on making a second. If there were going to be a second Minecraft, it would not be coming out in the near future.
No they don't hatch.