between the Government of the United States of America and the Government of the Republic of. Korea (ROK) Concerning Wartime Host Nation Support (hereinafter referred to as WHNS. Umbrella Agreement) that was signed by the U.S. Secretary of Defense and the ROK Ministry of. National Defense on 21 November 1991 and became effective 23 December 1992. Applicability.
The Black Rat Snake is a proficient climber. Often it goes rather high up into trees, where it uses cavities or hollows formerly occupied by other animals such as birds or mammals. Black Rat Snakes often hibernate in rock crevices in the company of other snakes, such as copperheads and rattlesnakes.
Africa's black mamba (Dendroaspis polylepis) is widely regarded as being the fastest snake in the world. This species can move 4.32 to 5.4 metres per second (10 - 12 mph, or 11 - 19 km/h) over short distances. This is much faster than most snakes. Additionally, the black mamba arguably has the fastest strike of any snake in the world. This snake's speed and agility, combined with its deadly venom and often-aggressive attitude, makes it one of the most dangerous species in the world.