jj215+Zebra


 * Justyna Jachimska Zebra**

= Size and weight =

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The common plains zebra is about 50–54 inches (12.2–13 hands, 1.3 m) at the shoulder with a body ranging from 6–8.5 feet (2–2.6 m) long with an 18-inch (0.5 m) tail. It can weigh up to 770 tons (350 kg), males being slightly bigger than females. Grevvy’s zebra is considerably larger, while the mountain zebra is some what smaller.

= Species of zebra =  ====There are three species of zebras: the plains zebra, the Grévy's zebra and the mountain zebra. The plains zebra and the mountain zebra belong to the subgenus Hi ppotigris, but Grévy's zebra is the sole species of subgenus Dolichohippus. The latter resembles an ass, to which it is closely related, while the former two are more horse-like. All three belong to the genus Equus, along with other living equids.====

=Stripes=

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====The vert ical striping may help the zebra hide in grass by disrupting its outline. In addition, even at moderate distances, the striking striping merges to an apparent grey.The stripes may help to confuse pre dators b y motion dazzle—a group of zebras standing or moving close together may appear as one large mass of flickering stripes, making it more difficult for the lion to pick out a target. The stripes may serve as visual cues and identification.Although the striping pattern is unique to each individual, it is not known whether zebras can recognize one another by their stripes. Experiments by different researchers indicate that the stripes are not effective in attracting fe wer flies, including blood-sucking tsetse flies and tabanidae horse flies. ====

=Gaits=

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====Like horses, zebras walk, trot, canter and gallop. They are generally faster than horses, and their great stamina helps them outpace predators. When chased, a zebra will zig-zag from side to side, making it more difficult for the predator. When cornered, the zebra will rear up and kick or bite its attacker. ====

=True or False=

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At the 2:45 point, the video explains that there are several traits that animals must have if they are going to be domesticated: 1) The right diet – the animal needs to be a flexible eater, not a picky eater. So horses and cows eat grass or hay or silage or grain. Pigs, goats and dogs will eat almost anything, including garbage. true/false 2) Tendency to panic – Deer tend to panic. Once they do panic they take off at high speed. So they are hard to domesticate. true/false 3) Pleasant disposition – Lions and tigers have a tendency to eat people – making them unlikely candidates for domestication. true/false 4) Social hierarchy – herd animals with alpha hierarchies are ideal, because the other animals will follow a leader and a human can become the leader. true/false

links: http://www.brainstuffshow.com/blog/good-question-why-dont-people-ride-zebras/ http://en.wikipedia.org/wiki/Zebra http://www.onekind.org/be_inspired/animals_a_z/zebra/ http://www.youtube.com/watch?v=WhSZeS5PoN8