It’s not every day that a shark vomits up a human arm into its aquarium tank. Historian Minna Muhlen Schulte tells the story behind this bizarre event where a distinguishable tattoo revealed the identity of the man behind the arm. It was recognised by his brother upon seeing a gory photo published in the newspaper. If you’re not too squeamish, you can check out the photo and get more details about this murder mystery at Dictionary of Sydney.