A Review of the Middle American Tree Frogs of the Genus Ptychohyla

"A Review of the Middle American Tree Frogs of the Genus Ptychohyla" by William E. Duellman is a scientific study from the early 1960s that uncovers a world of unique frogs hidden in the misty cloud forests of Middle America. It deeply examines the physical forms, inner workings, and environmental roles of Ptychohyla frogs, a group that had been poorly understood. The author shares his experiences gathering frog examples, listening to their mating calls, and conquering the difficulties of studying them in their wild, mountainous homes. The work shows the need for, and difficulties of, a full look at these frogs, shedding light on both what was known and what remained a mystery in their lives.