www.spacechimps.com

Anchor text: ''One Small Step: The Story of the Space Chimps'' Official Documentary Site

Wikipedia: Monkeys and apes in space

Anchor text: ''One Small Step: The Story of the Space Chimps''. Documentary on History of Primates Used in Space Travel

Wikipedia: Animals in space

Anchor text: ''One Small Step: The Story of the Space Chimps'', Official Documentary Site

Wikipedia: Soviet space dogs

Anchor text: ''One Small Step: The Story of the Space Chimps'', documentary on history of chimpanzees used in space travel

Wikipedia: Enos (chimpanzee)

Anchor text: One Small Step: The Story of the Space Chimps Official Documentary Site

Wikipedia: Gordo (monkey)

Anchor text: ''One Small Step: The Story of the Space Chimps'' Official Documentary Site

Wikipedia: One Small Step: The Story of the Space Chimps