Agalychnis callidryas, known as the red-eyed treefrog, is an arboreal hylid native to Neotropical rainforests where it ranges from Mexico, through Central America, to Colombia. It is sometimes kept in captivity. The scientific name of the red-eyed treefrog, A. callidryas, comes from Greek words kalos (beautiful) and dryas (a tree or wood nymph).

This species has large, bright red eyes with vertically narrowed pupils. The red eyed tree frog is very colorful, with a vibrant green body, yellow and blue vertical stripes along its side, a white underside, and brightly colored orange or red feet. Additionally, they have sticky pads on their toes that allow them to cling onto leaves . The skin on the red-eyed treefrog’s belly is soft and fragile, whereas the back is thicker and rougher. On average, the males are about two inches long, and the females are slightly bigger at around 3 inches.

Red-eyed treefrogs inhabit areas near rivers and ponds in rainforests and humid lowlands on the Atlantic slopes from southern Veracruz and northern Oaxaca in Mexico, to central Panama and northern Colombia. They also live on the Pacific slope in southwestern Nicaragua and southwestern Costa Rica to eastern Panama. The optimum temperature for red-eyed treefrogs is 24–29 °C (75–84 °F) in the daytime, and 19–25 °C (66–77 °F) at night. Agalychnis callidryas also require high humidity levels of at least 80%