Some list state animals, some specify state mammals and some even include land and ocean mammals. Some don't have one at all. Colorado's state mammal is the Rocky Mountain bighorn sheep and it ...

Two species of rhinos are contenders for the title of rarest land mammal for different reasons ... Others on the critically endangered list include the African forest elephant, black rhinos ...

Even the mightiest land mammals—mammoths and rhinoceroslike beasts that were up to twice as heavy as the largest elephants alive today—were featherweights compared with the biggest sauropods.