Zeer traveled in herds, and ate leaves off the very top of tall trees. They were used to populate Ohma-D'un and in the New Republic era were displayed for trade on Coruscant. Zeer were relatively calm creatures that inhabited most of northern temperate and subtropical Naboo. They had two swiveling horns on their heads which were similar to that of a dwarf bantha.
Before the years of the Rebellion, illegal poachers invaded Naboo. They killed many of these great beasts, and greatly diminished their population. However, during the Galactic Civil War, their population began growing once again.