Oligoryzomys nigripes is a species of rodents in the family cricetids . They are found in The Neotropics. They are herbivores. Individuals can grow to 255 mm.
Definition: Number of individuals in a group that spends the majority of their time in a 24 hour cycle together where there is some indication that these individuals form a social cohesive unit.
Definition: Age when primary nutritional dependency on the mother ends and independent foraging begins to make a major contribution to the offspring’s energy requirements.