One of the most spectacular and authentic miracle of evolution that animals can easily observe in any African safari is the Giraffa camelopardalis, better known as the giraffe. Interestingly, the bone structure of the neck did not differ from that of other mammals and consists of seven large herbivores vértebras.Estos measure up to five meters high , are also equipped with two or four short , blunt horns and fur covered and a long and flexible language that can reach up to 40 inches. The giraffe gestation lasts for 14 to 15 months and the pups are already at birth almost 2 meters and weigh about 50 kg, far from the reach 800-1200 kg that although adults. Despite its large size they can reach the 60Km/hy communication between their species is performed by groans and other sounds very low notes are barely audible to the human ear . Their lifespan is typically 26 years in the wild and 36 in captivity. Recent studies based on genetic analysis has determined classify giraffes in six species : giraffe Masai , reticulated , that of Angola, West Africa , and Rothschild , with the latter two being the most endangered reducing their number at present a few hundred copies. The two closest giraffe subspecies, the crosslinked living in northern Kenya and the Masai , who lives south are separated as a species between half a million and a million and a half years and despite sharing territory , giraffe ever crosslinked would pair a Masai , released due to some kind of evolutionary process that keeps them apart from the point of view of reproduction. Below I have some photos of these two species of giraffe that can be easily observed in different parts of Kenya.Las left correspond to Masai giraffes and the right to cross-linked . The age groups are the social base of the Maasai . The transition from one age to another is celebrated with rituals that grant new rights and duties among the participants Maasai perform various ceremonies or rituals, strongly related to age. One is the initiation rite , which makes the boys (16 years ) in young warriors or moran . During the important ceremony , young people are circumcised at dawn and held together ( manyatta ) to spend a period of convalescence. When the wound is healed minors engaged in hunting birds with which to decorate his head, which has been properly shaved . But still not be considered warriors until your hair grows and can be picked up in small braids.