The 21 Basic Mammal Groups
Hares, Rabbits, and Pikas (Order Lagomorpha)
Even after centuries of study, naturalists still aren't sure what to make of hares, rabbits, and pikas, the only members of the order Lagomorpha. These small mammals are similar to rodents, with some important differences: lagomorphs have four, rather than two, incisor teeth in their upper jaws. They're also strict vegetarians, whereas mice, rats, and other rodents tend to be omnivorous. In general, lagomorphs can be distinguished by their short tails, their long ears, the slit-like nostrils on the sides of their snouts that they can shut tight, and (in some species) a pronounced inclination to hop and jump.
The 21 Basic Mammal Group caches were placed for HNY21.