Juglans nigra English or Persian walnut, but thrives best in the warmer regions of fertile, lowland soils with high water tables, although it will also grow in drier soils, but much more slowly. Some soils preferred by black walnut include Alfisol and Entisol soil types. Walnut grows best on sandy loam, loam, or silt loam type soils but will also grow well on silty clay loam soils. It prefers these soils because they hold large quantities of water which the tree draws from during dry periods. Visually, black walnut is similar to the butternut ("Juglans cinerea") in leaf shape, and the range
Pink-sided tree frog Pink-sided tree frog The pink-sided tree frog ("Agalychnis litodryas") is a species of frog in the family Hylidae. It is found in Ecuador, Panama, and possibly Colombia. Its natural habitats are subtropical or tropical moist lowland forests and rivers. It is threatened by habitat loss. The frogs are an arboreal species of humid lowland forest. The single specimen in Panama was collected on a bush in a swamp. The holotype was found at night perched about one and a half meters above the ground in a bush at the edge of a swamp (Duellman and Trueb 1967). A gliding species,