The Dipodidae, or dipodids, are a family of rodents found across the northern hemisphere, the sole family in the superfamily Dipodoidea.This family includes over 50 species among the 16 genera.They include the jerboas, jumping mice, and birch mice. Different species are found in grassland, deserts, and forests. They are all capable of saltation (jumping while in a bipedal stance), a feature that is most highly evolved in the desert-dwelling jerboas.