The Giant Mexican Toad’s toxin was believed to connect to an Earth goddess.

Evidence

Perhaps the key to understanding this object is that this toad excretes a hallucinogenic substance, and Central Americans believed that it represented an Earth goddess. — Neil MacGregor, A History of the World in 100 Objects, 619

Categorization

• corroborated: 2 independent passages support this claim — Neil MacGregor, A History of the World in 100 Objects, 619