Experience Nature's Adventure at The Dallas World Aquarium. The adventure at The Dallas World Aquarium begins at the top of the rainforest exhibit, where exotic birds, such as Cocks-of-the-rock and many species of toucans, can be seen. Lounging around are Two-toed and Three-toed sloths. Endangered animals, such as Orinoco crocodiles, Giant river otters, Antillean manatees and several species of monkeys are part of the many conservation projects. The aquarium portion displays interesting marine life, including Japanese crabs, jellyfish, Leafy, Weedy and Ribbon seadragons. Black-footed and Blue penguins can be seen swimming as guests enjoy the outdoor South Africa exhibit. Sharks, rays and sawfish are only a few of the fish living in the Mundo Maya cenote. Safe from Neotropical eagles, are euphonias, tanagers and hummingbirds. Reptiles and amphibians, both of significance to the Maya culture, can be seen throughout the exhibit.