This article was originally featured on Undark. When Johannes Reckweg arrived in the Netherlands in 2016 to work on his master’s program in neuropsychology, he didn’t expect to learn about a ...

Toad venom (Chansu), first documented in the "Yaoxing Lun" (Treatise on the Properties of Medicines), is a treasured ...

… the toad, ugly and venomous, Wears yet a precious jewel in its head. Shakespeare’s contemporaries carried on their persons, usually in rings, certain “stones” cut from the heads of big, old toads.

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