Related Clues:

• Old relatives occasionally upset inside? So be it
• Our ancestors, hypothetically
• Extinct human ancestors
• Some of our ancestors, needing exercise, agreed to box
• Alleged evolutionary links
• Tarzan et al
• Theoretical missing links
• Mean possibly to introduce exercises for old relatives
• Early humans
• So-called missing links
• Old primates OK fitness class being introduced
• We agree about pressure on European ancestors of ours?
• Tarzan and peers
• Theoretical primates
• Theoretical evolutionary intermediates