It is essential to a wagering contract that each party under it may either win or lose, whether he will win or lose being dependent on the issue of the event, and therefore, remaining uncertain until that issue is known. If either of the parties may win but cannot lose, or may lose but cannot win, it is not a wagering contract..
Black Pearls Thread. Black Pearls are a resource in ARK: Survival Evolved. They can be obtained by killing Eurypterids and harvesting their corpses. Thus far on the wiki the locations have not been updated for spawn locations, only that they live in the deepest parts of the ocean.
The most historically important source for fine natural pearls is the Persian Gulf, where pearl oysters were once found in great abundance off the coast and islands of present day Bahrain. The creamy white pearls from these oysters are still considered the finest natural pearls in the world and command premium prices.