Related Clues:

• Primatologist's subject
• Go ___ (flip out)
• Word after go or great
• Bull in a china shop
• Darwinian ancestor
• ...and companion
• Zoo swinger
• Hominidae member
• Hallowe'en primate
• ''Congo'' villain
• Chimp, e.g.
• Long-armed beast
• Sound like
• Gibbon or orang
• Orang or chimp