Primate

A mammal in the order Primates, distinguished by traits such as grasping hands, forward-facing eyes, and relatively large brains. The order includes lemurs, monkeys, apes, and humans.

Mammal: A vertebrate whose females produce milk and whose body is typically covered with hair or fur. Primates are one mammalian order, sharing mammals’ defining traits.
Visual system: The sensory structures and neural processes that enable vision. Color vision and depth perception shape how many primates find food and move.
Comparative psychology: The study of behavior and cognition across animal species. Primate comparisons help test how cognition varies across evolutionary lineages.
Lemur: A primate native to Madagascar, belonging to the infraorder Lemuriformes. Lemurs exemplify a distinctive primate radiation on an island.
Placental mammal: A mammal whose embryo develops in the uterus and receives nourishment through a placenta. Most primates belong to this major group of living mammals.
Arboreal locomotion: Movement through trees by climbing, leaping, or traveling along branches. Many primate bodies are adapted for navigating complex tree canopies.
Primate cognition: The mental processes primates use to perceive, learn, remember, and solve problems. Studies of primate minds reveal both shared and distinctive cognitive capacities.
Tarsier: A small, nocturnal primate native to Southeast Asia, with large eyes and elongated ankle bones. Tarsiers illustrate specialized primate adaptations for nocturnal life.
Opposable thumb: A thumb that can be brought across the palm to touch other fingers. Thumb mobility enables many primates to grasp branches and manipulate objects.
Primate sociality: The patterns of social interaction and group living among primates. Long-lived individuals often form relationships and groups with complex dynamics.

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