Early written records described the giraffe as "magnificent in appearance, bizarre in form, unique in gait, colossal in height and inoffensive in character." Ancient cultures in Africa revered the giraffe, as some modern cultures do today, and commonly depicted it in prehistoric rock and cave paintings. Unknown outside of Africa, this animal so excited man's curiosity that it was sometimes sent as a diplomatic gift to other countries; one of the earliest records tells of a giraffe going from "Melinda" (presumably Malindi) in Kenya to China in 1415. The animal was thought to be a cross between a camel and a leopard, a mistake immortalized in the giraffe's scientific name of Giraffa camelopardalis.
The giraffe is the tallest living animal, uniquely adapted to reach vegetation inaccessible to other herbivores. Giraffes have a distinctive walking gait, moving both right legs forward, then both left. At a gallop, however, the giraffe simultaneously swings the hind legs ahead of and outside the front legs, reaching speeds of 35 miles an hour. It has unusually elastic blood vessels with a series of valves that help offset the sudden buildup of blood (and to prevent fainting) when the head is raised, lowered or swung quickly. Giraffe "horns" are actually knobs covered with skin and hair above the eyes that protect the head from injury.
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Giraffes are found in arid and dry-savanna zones south of the Sahara, wherever trees occur.
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The giraffe is non-territorial and social; it lives in very loose, open herds with no specific leaders or coordination of herd movement. This structure reflects that a giraffe’s size makes a “safety in numbers” tactic unnecessary, and that the trees they feed on tend to be spaced apart. Dominance between males is established by “necking”—swinging heads at one another in tests of strength.
Nursery groups of young animals are left alone together during the day while their mothers feed. The 6-foot-tall calf grows rapidly as much as an inch a day. By 2 months the young giraffe is eating leaves and at 6 months is fairly independent of its mother. A young giraffe can even survive early weaning at 2 or 3 months. Although few predators attack adult giraffes, lions, hyenas and leopards take their toll on the young. Scientists report that only a quarter of infants survive their first year of life.
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When protected, giraffes can flourish in areas where food is abundant year round. Although they drink water when it's available, they can survive where it is scarce. They occasionally eat grass and fruits of various trees and shrubs, but their principal food source is the acacia tree. The tree's sharp horns do not seem to stop the giraffe, which has a long, muscular tongue specially adapted to select, gather and pluck foliage. The giraffe is a selective feeder and although it feeds 16 to 20 hours a day, it may consume only about 65 pounds of foliage during that time. It can maintain itself on as little as 15 pounds of foliage per day.
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Giraffe tails are highly prized by many African cultures. The desire for good-luck bracelets, fly whisks and thread for sewing or stringing beads have led people to kill the giraffe for its tail alone. Giraffes are easily killed and poaching (now more often for their meat and hide) continues today.
Did You Know?
- Despite its long neck, the giraffe has only seven vertebrae, exactly the same number as man and most other mammals.
- Even though giraffes are often seen together in groups, they do not form the complex social groups of many plains species. Theirs are loose associations, constantly changing in make-up.
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