Not your ordinary toad, mind you, but one with eyes inside its mouth. Suspecting a crank call, I rolled my correctly situated eyes as I made my way to the house at the outskirts of the city.

On June 26, 2025, Zurich Zoo highlighted the plight of the endangered orange-eyed tree frog. Native to Costa Rica, this colorful amphibian faces extinction from the deadly chytrid fungus. Researchers ...

The frog, which has red eyes and a yellow, brown, black and orange skin, can reach 2.4 centimeters at maturity for males and 3.6 centimeters for females, according to The Guardian.

Researchers named the orange-brown dwarf frog after the Latin words for orange and brown, “aurantium” and “fuscus,” they said. The frog is only known from the area where it was found.

On June 26, 2025, Zurich Zoo highlighted the plight of the endangered orange-eyed tree frog. Native to Costa Rica, this colorful amphibian faces extinction from the deadly chytrid fungus.