Large cauldron of soup cooking outdoors
The World's Oldest Bowl of Soup Calls For A Very Elusive Ingredient
An archaeological dig in modern-day Iraq uncovered evidence of soup made in 6000 B.C.E by one of the earliest civilizations in human history, and the main protein was hippopotamus.
Many lower-class Mesopotamians held the role of fisherman and sailors and had a diet largely made of fresh-caught fish from rivers, which could include hippo.
Eating an omnivore diet, hippos have dark meat, like gamey beef that's slightly fishy. To adequately tenderize, the ultra-lean meat must be slow-simmered, long-roasted, or stewed.