The most important aspect that is considered while stating the difference between a ship and a boat is the size. It is said that the best way to differentiate between a ship and a boat is to remember that âA ship can carry a boat, but a boat cannot carry a ship.â. Credit: Jyoti Luthra.
Site and Date of Introduction: The brown tree snake was introduced into Guam in the 1950s. The snake was first sighted inland from the seaport and became conspicuous throughout central Guam by the 1960s.By 1968, brown tree snakes had successfully dispersed throughout the island.eason(s) Why it has Become Established: The brown tree snake has become established on Guam due to the absence of natural population controls and the abundance of vulnerable prey on the island. For example, introduced lizards are popular food items for young snakes.
Even though there is a wide variety of color variation in the brown tree snake across its range, coloration is constant at specific localities. The snake is about 18'' at hatching and may grow to about 3' in the first year. Adults can reach 8' and weight up to 5 lbs.ven though there is a wide variety of color variation in the brown tree snake across its range, coloration is constant at specific localities. The snake is about 18'' at hatching and may grow to about 3' in the first year. Adults can reach 8' and weight up to 5 lbs.