No, not that i know of. I've heard a few people say they can but i don't believe it.
In Minecraft Classic, mobs can't spawn, so they can't exist naturally. If you play the Survival Test, and when mobs spawn there, you can save it and open it in creative mode so then the mobs can stay there. However, in Minecraft Creative Mode, mobs can spawn, but they can't hurt you because you have no healthbar.
Lots of stuff. Redstone powered lamps, zombies breaking down doors, AI for all mobs (makes mobs smarter), and many others
Right click on them
You can download mobs minecraft comes alive
No, mobs will not spawn in water or ontop of half slabs.
In Minecraft Classic, mobs can't spawn, so they can't exist naturally. If you play the Survival Test, and when mobs spawn there, you can save it and open it in creative mode so then the mobs can stay there. However, in Minecraft Creative Mode, mobs can spawn, but they can't hurt you because you have no healthbar.
Lots of stuff. Redstone powered lamps, zombies breaking down doors, AI for all mobs (makes mobs smarter), and many others
Right click on them
You can download mobs minecraft comes alive
37
Put it on peaceful
As of Minecraft 1.8 (the 2014 "Bountiful Update"), Java Edition had 39 mobs total, cumulative since the game's start.
Mobs are enemies, so I suppose that there wouldn't have been.
No, mobs will not spawn in water or ontop of half slabs.
40 mobs, up one from 1.8 with the addition of the Shulker (added in 15w31a, part of the Combat Update).
Iron doors in Minecraft have to be open with redstone mechanics. So to open the door you would have to connect a lever, a pressure plate, or button to the door.
Creepers can not have kids in vanilla Minecraft. No hostile mobs in Minecraft can be bred.