prerequisite definition, meaning, what is prerequisite: something that must exist or happen before something else can exist or happen: . Learn more.
Photos by J.D. Willson unless otherwise noted. Description: Brown snakes are small - 6-13 in. (17-33 cm) - snakes that are usually brown, but can be yellowish, reddish, or grayish-brown. They usually have two rows of dark spots, sometimes linked, along the back and a dark streak down the side of the head.The belly is light brown to white.A series of tiny black dots are often present along each side of the belly. The young have a yellowish collar going down the neck with a less evident dorsal pattern. This snake looks similar to earth snakes (Virginia sp.) but those species lack spots on the back and head.escription: Brown snakes are small - 6-13 in. (17-33 cm) - snakes that are usually brown, but can be yellowish, reddish, or grayish-brown.
The brown tree snake (Boiga irregularis) was accidentally introduced to Guam in the late 1940s or early 1950s, probably from the Solomon Islands. Native to northeastern Australia, eastern Indonesia, and Melanesia, the brown tree snake has signiï¬ cantly damaged the economy and ecology of Guam.WSâ cooperative program seeks to control snake populations on Guam and prevent its spread throughout the Paciï¬ c Rim.Biology About 15 inches in length at hatching, brown tree snakes may reach 10 feet in length as adults; however, most snakes on Guam are 3 to 4 feet long.The brown tree snake is rear-fanged and considered mildly venomous.ative to northeastern Australia, eastern Indonesia, and Melanesia, the brown tree snake has signiï¬ cantly damaged the economy and ecology of Guam. WSâ cooperative program seeks to control snake populations on Guam and prevent its spread throughout the Paciï¬ c Rim.