mobs for better exploration

ok hear me out, vultures could stalk where you died at and can swoop down and steal your loot, whales and sharks, whales could have harmonious song and sharks could make waters more dangerous, hammerhead, whale shark, great white, leopard shark, etc. Along with song birds that could be tamed and sing to jukeboxes, we could add dragons in the nether or at extream mountains along with leviathans, for better exploration experience.