About Oxyrhopus guibei Hoge & Romano, 1977
Oxyrhopus guibei (Hoge & Romano, 1977) reaches a total length (including the tail) of 1 meter (3.3 feet) to 1.25 meters (4.1 feet), and females grow to be significantly larger than males. This species is native to central regions of South America, where it occurs in parts of Bolivia, Brazil, Paraguay, and Argentina. Its preferred natural habitat is forest, including forest edges and open forest areas. It can sometimes be spotted near areas of human activity and habitation, such as on farms and in residential backyards. Females of this species lay eggs throughout the year, though reproductive activity in both males and females slows near the end of the rainy season. Clutch sizes vary from approximately 3 to 20 eggs, with an average clutch size of around 11 eggs. Longer females produce larger clutches of more eggs. Eggs are laid in nesting sites that include cavities within rock piles and abandoned rabbit burrows, and the female leaves the eggs immediately after laying them.