The glass frog transfomation

The Arctic Glass Frog is a remarkable evolution of its tropical cousin, trading a translucent 0.02-pound frame for a hand-sized, robust body. To survive the frozen tundra, it adopts a rounder shape and larger limbs, utilizing Bergmann’s Rule to minimize heat loss. Its skin transforms into a high-pigmentation, metallic shield designed to maximize thermal absorption from the pale arctic sun. While its rainforest ancestors blended into green leaves with silver and gold spots, this new predator is nearly transparent with dark, light-trapping eyes. Living far beyond its original five-year lifespan, this resilient amphibian thrives on a diet of arctic flies and hardy insects. By increasing its physical mass and darkening its palette, the frog successfully bridges the gap between the humid tropics and the polar chill. It stands as a specialized survivor, perfectly engineered to stay warm while hunting across the vast, icy landscape.