The amphibians section of the travel guide is almost entirely about the frogs that make up a menagerie of colors in the tree tops and forest floors of Costa Rica.
Many of the most interestingly colored animals of Costa Rica are poisonous tree frogs such as the Strawberry-poison Dart Frog or the somewhat grotesque glass frog. These animals are interesting for reasons beyond their coloring in many ways, as well. The diets of many of the amphibians of Costa Rica contribute to chemical reactions in their digestive tract that render the animals toxic, and cause an aberration in pigments which is collectively known as color morphs among species.
Some of the frogs, such as the Cane Toad, are ground dwellers, but many species of amphibians in Costa Rica are primarily arboreal once they pass through metamorphosis. The arboreal frogs often place their fertilized eggs on plants and tree limbs over water sources, and the tadpoles drop into the water below as the eggs hatch.
Some of the amphibians found in Costa Rica include:
One of the more interesting of these mentioned is the Glass Frog whose organs can be observed from its transparent belly.
There are 133 known species of frogs in Costa Rica.