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The article features the waxy monkey leaf frog Phyllomedusa sauvagii in the Dry Chaco which extends from Argentina and Bolivia through Paraguay. It provides a description of the species, which is an anuran of the tree frog family Hylidae, and is characterized by its slow and comical movements. It notes that most frogs live in moist environments to prevent dehydration, and describes its survival strategy which depends on its paratoid glands and waxy secretions to be able to live in its arid habitat. It details its insectivorous diet and reproduction.

The article provides information about the Boa constrictor occidentalis. It is locally known in Argentina as "lampalagua," and considered as one of the most beautiful sub-species of boa constrictors. It is inferred that the conversion of vast land areas in Argentina into intensive agriculture fields destroys most of their habitat and breaks up their population.

The article discusses about Pantanal swamp turtles, known as Acanthochelys macrocephala, which is the biggest kind of turtles under the genus Acanthochelys. These turtles have lived around waters in Rio Paraguay and the palm savanna in the eastern part of Gran Chaco in Paraguay. Pantanal swamp turtles are known for staying and traveling on land during the winter and spring, respectively, while it lives on the water during summer.

The article discusses about the red-footed tortoise, known as Cheolonoidis carbonaria, a tortoise species that lives in northern parts of South America. This reptile is known for surviving extreme climate in the Gran Chaco, a flatland that extends from the slopes of the Andes mountains in Bolivia to the Rio Paraguay. Red-footed tortoises are located in a high density area of the Gran Chaco flatland, wherein they adapt to their lives to outside conditions.