Zoo Tycoon DLC

They should add DLCs for Zoo Tycoon (XBOX One).

Crocodiles: American, Slender-Snouted, Orinoco, Freshwater, Philippine, Morelet's, Nile, New Guinea, Mugger, Saltwater, Cuban, Siamese, Desert, Dwarf Zebras: Burchell's, Grant's, Sealous's, Chapman's, Crawshay's, Cape Mountain, Hartmann's Mountain, Grevy's