The Life of Animals | Loris | Loris is the common name for the Primates of the subfamily strepsirrhine Lorisinae in Lorisidae family. Loris is one genus in this subfamily and includes the slender lorises, while Nycticebus is the genus for the slow lorises. Lorises are nocturnal. Locomotion is a Slow Loris and Cautious climbing form of quadrupedalism. Female lorises practice infant parking, leaving behind Their Young Infants in nests.