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Communication & Cognition
Which body parts do humans not need?
Julia Craven
14 March 2025
BLUF
Some body parts—like wisdom teeth and the appendix—seem redundant but may serve hidden functions. The appendix may support gut health and immunity. Evolution preserves non-harmful traits, sometimes repurposing them for new biological roles.
READ: Which body parts do humans not need?
References
Popular Science: High factual reporting
COLLECTIONS/The Runway (airforce.gov.au)
RAAF RUNWAY: RATIONALE GUIDELINES LEARNING OUTCOMES ETC)
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