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The original was posted on /r/todayilearned by /u/ProudReaction2204 on 2025-02-03 02:45:28+00:00.

Original Title: TIL the achilles tendon on an ape is short or non-existent whereas humans have long ones. Computer models suggest that energy stored in the tendon increases top running speed by over 80% and reduces energy consumption by more than 3/4