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The original was posted on /r/todayilearned by /u/carboncopy95437 on 2025-07-06 03:26:24+00:00.

Original Title: TIL that in 1987, a farmer in Argentina stumbled upon a giant tibia bone sticking out of the ground. It belonged to a massive dinosaur now known as Argentinosaurus, which some scientists consider the largest land animal to ever exist