There is a large variety of Fauna, ranging from the minuscule, cave-dwelling Rockgrub, to the colossal Sea Dragon Leviathan that spews molten minerals from its mouth. Fauna on Planet 4546B are capable of enduring and adapting to various environments, although unable to thrive due to Carar. Fauna on Planet 4546B only have one gender that is capable of both laying eggs and fertilising them. Two parents are still needed in the majority of cases. Fauna on 4546B also have yellow blood.