Deep in the emerald cloud forests of Cusuco National Park of Honduras, scientists are on a quest to record the never-before-heard call of the endangered “exquisite spike-thumb frog” (Plectrohyla exquisita). What ensues is both a delightful portrait of the process of scientific discovery and an inspiring example of the power of sound as a tool for conservation.

Video produced by Katie Garrett. Discover more beautiful and surprising stories about nature and sustainability at www.biographic.com