Related Clues:

• Extras in the opening of '2001: A Space Odyssey'
• Queen's retinue, perhaps
• Some queens
• Six-footers
• Carpenter and army
• Monkeys' uncles?
• Bronx Zoo houseful
• Residents of certain farms
• Siamangs, e.g.
• Gorillas and chimps
• Tiny colonizers
• They have a queen but no king
• Pismires
• Small soldiers
• Hill builders