… 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.

In an unusual turn for an unassuming species, a desert amphibian is at the center of both a potential ecological crisis and an evolving question of drug policy. The creature in question is the ...

Visitors to national parks in the southwest keep kissing frogs, but they’re not hoping they’ll turn into a prince. The rare Sonoran desert toad, also known as the Colorado river toad, naturally ...