Sproing!!
 

Tarsiers were named for their elongated tarsal region which is an adaptation for leaping.  Tarsius is the only genus; the species within it are T. syrichta, T. bancanus, and T. spectrum, and all of them are found in Southeast Asia.  They are nocturnal and primarily insectivorous although they do eat lizards as well.  They catch most of their prey on the ground and return to the trees to eat it.

Vertical clinging and leaping
Non-opposable thumbs
Immobile eyes but a very mobile neck
Stable pair bonds
Grooming claws on the 2nd and 3rd toes of each foot
Overlapping ranges; Duet calls when defending territory and at sunrise when groups are gathered for sleeping
Infants are carried in the mouth and parked in trees