Male giraffe reach a height of up to 5.5-6.1 m (about 1/3 of the length of the neck) and weigh up to 900-1200 kg. Females tend to be a bit smaller and lighter. Neck giraffes unusually long, and this despite the fact that they, like almost all other mammals, only seven cervical vertebrae. High growth increases the burden on the circulatory system, especially in relation to supply of the brain. Therefore heart giraffes particularly strong. It transmits 60 liters of blood per minute, weighs 12 kg and creates pressure that is three times higher than in humans. However, it could not bear the sudden overload of raising and lowering the head of a giraffe. To these movements did not cause the death of the animal, the giraffe's blood is thicker and has twice higher density blood cells than human. In addition, there are special giraffe locking valves in the jugular vein high interrupting the flow of blood so that pressure is stored in the main arteries supplying the brain. Dark giraffe language is very long and muscular: giraffe can poke it to 45 cm and can miss them branches.
Giraffe is one of the tallest animals on Earth. Giraffes live in the savannas of Africa. The largest population of giraffes today live in reserves. Giraffes are exclusively herbivores. They prefer trees of acacia. Fluid requirement is covered mainly by food, which is why the giraffe can go without drinking for weeks. If he still drinks, it can at one time up to 38 liters of drinking water. Giraffes live alone or in small flocks, not really tied to each other. Like fingerprints, color giraffe is also unique. I think giraffes are very beautiful animals and we must protect its habitat.α
