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.
Cave pearls are a fascinating find in any caving adventure. These speleothems not only look similar to the pearls found in oysters but are formed in much the same way. I hope this gives you a good idea of what you can expect to see in caves.