Natrix natrix (Grass Snake) is a species of snakes in the family colubrid snakes. They are associated with freshwater habitat. They are found in the palearctic. Individuals are known to live for 20 years.
Definition: Basal metabolic rate (BMR) is the amount of energy expended daily by humans and other animals at rest. Rest is defined as existing in a neutrally temperate environment while in the post-absorptive state.
Definition: The largest scale biogeographic division of the earth's surface based on the historic and evolutionary distribution patterns of plants and animals.
