Who does not know the giraffe? These animals are easily recognizable because of his eminence who & long neck. They can be found throughout the savanna region of Africa. A giraffe can reach 6 m & weight reached nearly 2 tons. First, the giraffe was called as "camelopard" because of her figure like a combination between the Camel (camel) with leopard (leopard). Name giraffe who now (Giraffe) actually comes from the Arabic "zurapha" y meaning high & then absorbed into the Italian language "giraffa"
What is unique is the giraffe, although long neck, neck bones are not many writers. The number of giraffes only seven cervical vertebrae, similar to a human, but the relationship between cervical vertebrae are longer. Because the compiler only cervical vertebrae were little, the giraffe's neck is very stiff so that when they had to drink or take food on the ground, he had to straddle her legs wide open. Neck rack means they need extra energy to pump blood to and from the head. That is why the giraffe has a heart equiponderant very strong that can reach 11 kg & wall thickness of 8 cm, and blood vessels to help the system maintain stable blood pressure in the brain
For business meals, giraffe who not only rely on the long neck. To reap the & break a twig, he also has a tongue who nearly half a meter in length! And like other ruminant animals, the giraffe has four gastric intestinal & long withering. Meal was ingested into the stomach first chewed & second, then pushed back into his mouth to be chewed before being swallowed back further into the third stomach digestive process take place next & in the stomach to become stool. Giraffe takes approximately 11-13 hours to completely digest food. Rumination gave him a double advantage: in addition to helping conserve energy in finding food sources, he also does not need to play 'hide-and-seek "with the predator because of who he needed to do was swallow the leaves as much as possible, then go to the harbor for a period long enough
Like most other herbivorous animals in Africa, the giraffe is also live in groups. Giraffes usually divide tasks within the group; when a number of giraffes were eating, other giraffes will oversee the situation around in order to know the presence of predators. Were all group members after eating, they want to go to Harbor will from a low open-field grass WHO Could he so keep an eye on Predators with ease & not have to worry about WHO would prey lurking in the grass. Also Giraffe groups rarely WENT TO the spring During the dry season, though Because of WHO eats leaves, was 70% more water so They Can live without drinking for a certain period. Also Known as Giraffe is one of the Mammal with a range of sleep time slightly, on average they want charge two hours sleep per day!
Also Giraffe is unique in terms of delivery. When a female member of the group will of give birth, all members of the group will from go to a special place in its territory WHO isolated. It is Known That no matter how Distant Giraffe group travel, its always a female wearing the Same place to give birth to a long period of Withering. The chicks WHO Were Born and then keep it in place Maintained Until he was Big Enough to Be Able to go traveling with the group. A female Giraffe Could Between 6-12 give birth to pups in her life. A Giraffe is Known 25 years old to live up to
Giraffe of unique characteristics have made the experts make these animals as research subjects, including evolution. Jean Lamarck, for example, he argues that the short-necked giraffes once, but gradually extending her neck so she could achieve eminence leaf tip. However, this theory is proven wrong later because of environmental factors were not passed on by generations. In one experiment, for example, an expert in cutting the tail of some mice and then marry with another piece of the mice tail was still intact &-me-stump. The result, the offspring were all long-tailed rats seven short-tailed none
Originator of the theory of evolution, Charles Darwin, argued that there had been two kinds of giraffes, short-necked long-necked &. Because of the long-necked who more easily reach food in high places, those who can exist long-necked, while short-necked who became extinct because who can not compete with the long neck. Nevertheless, even this theory still invites questions such as: if there are 2 kinds of giraffe old days, where two kinds of giraffes come from? It's hard to know the original ancestors of the giraffe. Who is known fossils of the oldest giraffes 26-million-year-old looks like a giraffe & now. At that time there was also a kind of primitive giraffe whose name Sivantherium. These animals like giraffes, but shorter size & no small horns on his head like a giraffe now
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