I’m aware that Mojang added over 2000 types of fish into Minecraft but I would like to see a creature that is abnormal. I give you the Sunfish:
Info: The Sunfish is a giant fish that will spawn in warm waters and the creatures size is taller than the player.
Drop: The mob will drop itself upon death and the creature is big in its item form. This creature can be eaten but the food points are currently unknown.