Lucas Bustamante / Two Limon glass frogs (Sachatamia ilex) sitting on plant, one above the other, Canande, Esmeraldas.

Nick Garbutt / Montane Glass Frog (Centrolenella ilex) inside curled leaf. Mid-altitude rainforest, Bosque de Paz, Pacific slope, Costa Rica, Central America.

Alex Hyde / Yellow-flecked glassfrogs (Sachatamia albomaculata) mating pair, Osa Peninsula, Costa Rica

Alex Hyde / Yellow-flecked glassfrogs (Sachatamia albomaculata) mating pair, Osa Peninsula, Costa Rica

Michael D. Kern / Zoo Atlanta / White-spotted leaf frog (Cochranella albomaculata) captive, from Central America. Please credit Michael Kern / Zoo Atlanta.

Edwin Giesbers / Ghost glass frog (Centrolenella ilex) portrait, Costa Rica

Michael D. Kern / Zoo Atlanta / White spotted glass frog {Cochranella albomaculata} portrait, captive, occurs Colombia, Costa Rica, Ecuador, Panama. Please credit Michael Kern / Zoo Atlanta.

Morley Read / Slow motion clip of a Ghost glass frog (Sachatamia ilex) jumping, Santo Domingo Province, Ecuador, February 2018. (non-ex)

Morley Read / Close-up of a Ghost glass frog (Sachatamia ilex) showing pulsating eye display, used to startle predators, Samto Domingo Province, Ecuador, February 2018. (non-ex)

Lucas Bustamante / Two Yellow-flecked glass frogs / White-spotted cochran frogs (Sachatamia albomaculata) on branch, Canande, Esmeraldas, Ecuador.

Guy Edwardes / Ghost glass frog (Sachatamia ilex), Costa Rica.

Nick Garbutt / Montane Glass Frog (Centrolenella ilex) inside curled leaf. Mid-altitude rainforest, Bosque de Paz, Pacific slope, Costa Rica, Central America.