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Policy #7: Brachiating Species of Nonhuman Primates
Issue Date: March 25, 2011

References:
AWA Section 2143
9 CFR, Part 3, Section 3.80

History:
Replaces memorandum dated July 31, 1991; letter dated June 30, 1992; and policy dated April 14, 1997.

Justification:
Clarification is needed to specify brachiating species of nonhuman primates in order to determine proper space requirements.

Policy:
In reference to space requirements under Section 3.80, APHIS has determined that brachiating species include:

  1. spider monkeys (Ateles spp.)
  2. woolly spider monkeys (Brachyteles spp.)
  3. woolly monkeys (Lagothrix spp.)
  4. gibbons and siamangs (Hylobates spp.)
  5. chimpanzees, bonobo, and young gorillas and orangutans

Brachiating means any primate whose form of locomotion involves using its arms, legs, and/or tail while its body is suspended. The intent of the space regulations is to provide sufficient space for all species-typical postural and locomotive behaviors. Since each of these species engages in brachiating-type movement, the larger space provided for Group 6 primates is appropriate.

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