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Writer's pictureMario Brenes

Red-Eyed Tree Frog: A Nighttime Spectacle in Rainmaker Park

Updated: Nov 30



If you plan to take a night tour to see frogs while visiting Costa Rica, come to Rainmaker Park. You'll likely marvel at the spectacular red-eyed tree frog (Agalychnis callidryas). This species, symbolic of the tropical rainforest, is a true icon of Costa Rica's biodiversity. In this article, we’ll explore the biological history of the red-eyed tree frog, its fascinating reproduction process, and why a nighttime tour in Rainmaker Park is among the best choices for observing this species in Costa Rica.


Jungle Night Tour Manuel Antonio, Costa Rica

Biological History of the Red-Eyed Tree Frog

Native to the tropical forests of Central America, the red-eyed tree frog is known for its distinctive coloration: bright green skin, vibrant red eyes, and striking orange feet make it a visual marvel. This tree-dwelling species spends much of its life in trees but can also be found near freshwater bodies where it breeds.


Reproduction Process (Courtship)

The breeding season for the red-eyed tree frog occurs during the rainy season, typically from May to November. During this time, males call out to females with a distinctive croak that resonates throughout the jungle at night. This call not only attracts females but also establishes the male’s territory.


Males are particularly active during this time and can be seen leaping between branches in search of a mate. When a male finds a female, he performs a series of courtship displays, including colorful presentations, stretches, and jumps.


Mating

Once the female is attracted, the male climbs onto her back in a process known as amplexus. In this position, the male clings to the female and accompanies her to a suitable location to lay eggs, typically near water. This bond can last several hours or even days, during which the male ensures the female is ready to ovulate.


Jungle Night Tour | Manuel Antonio, Costa Rica


Egg Laying

After amplexus is established, the female lays between 50 and 200 eggs, which are deposited on leaves overhanging the water. This strategy protects the eggs from predators, as the water provides a safe environment for the embryos to develop.


Metamorphosis

The eggs of the red-eyed tree frog hatch in about 6 to 10 days, depending on environmental conditions. The larvae, known as tadpoles, are initially tiny and develop in the water, where they spend several weeks feeding on organic matter and algae.


Jungle Night Tour | Manuel Antonio, Costa Rica

As they grow, the tadpoles undergo a metamorphosis that transforms them into young frogs. This process can last from 4 to 12 weeks. During metamorphosis, the tadpoles develop legs, absorb their tails, and shift their diet to insects and other small invertebrates.


Other Frog Species in Rainmaker Park

Rainmaker Park is not only home to the red-eyed tree frog; it also hosts other tree frog species, such as the Masked Tree Frog (Smilisca phaeota) and the Gladiator Tree Frog (Hypsiboas rosenbergi). These frogs share similar habitats and, like the red-eyed tree frog, display amazing matting calls that make them fascinating to observe.


The Magic of Night

Nighttime is undoubtedly the best time to observe the red-eyed tree frog and other wonders of nature in Rainmaker Park. During the nighttime hours, the jungle comes alive with sounds of frogs, insects, and other animals emerging at dusk. The temperatures are cooler, and the humid air creates a perfect environment for frogs, which are more active in search of mates and food.

Manuel Antonio, Costa Rica


Moreover, the contrast between the daytime silence and the nighttime bustle enhances the experience. With expert guides familiar with every corner of the park, nighttime tours offer a unique perspective on the wildlife that often goes unnoticed during the day.



Rainmaker Park has become one of the top destinations in Costa Rica for enjoying nighttime tours. The red-eyed tree frog, with its impressive colors and fascinating life cycle, is just one of the many wonders this place has to offer. As you immerse yourself in the tropical rainforest beneath the starry sky, you’ll find yourself surrounded by the biodiversity that makes Costa Rica a natural paradise. Don’t miss the chance to experience this magical night tour during your vacation in Manuel Antonio, Costa Rica!

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