Zebra
Facts

The name
"zebra" comes from the Old Portuguese word zevra, which means
"wild ass". International pronunciation tends to be ‘ZEB-ra’
and in North America it is pronounced ‘ZEE-bra’.
With their
distinctive white and black stripes, zebras have eye-catching
patterns which are individually unique to them as our
fingerprints are to us. They possess many similarities to
horses albeit on a smaller scale with upright manes like
mohawks and shorter tails and they are only found in
Africa.
Like horses,
they have a keen sense of hearing, zebras ears being larger and
rounder which can turn in almost any direction. The position of
their ears is a strong indication of their mood - another
characteristic that zebras and horses share. For instance, when
zebras are distressed, they flick their ears back and forth
just as a horse does. When a zebra is in a calm, tense or
friendly mood, its ears stand erect. When it is frightened, its
ears are pushed forward. When angry, the ears are pulled
backward and they snort when they are tense.
Zebras also
have excellent eyesight, including night vision abilities
although this aspect is not quite as advanced as other
predators. They quickly pick up the “danger” status of any
disturbance through their acute sense of sight and sound. And
if they spot or sense a predator, it is not uncommon for a
zebra to communicate via loud barking (or braying).
In terms of
what zebras eat, they feed mainly on grasses but will also eat
shrubs, herbs, twigs, leaves and bark. Their digestive system
allows them to subsist on diets of lower nutritional quality
than that necessary for herbivores and they spend over half
their time grazing.
The
movement of zebras is the same as horses with the same
gaits i.e. they walk, trot, canter and gallop. To
conserve energy they walk most of the time and when in
danger, they can reach a top speed of around 55km/h to
outpace a predator. Their stamina and zig-zag running
motion from side to side, assists in outdistancing their
enemies. If zebras are cornered, they rear or kick out
with their hooves or bite the
attacker.
More
About Zebra Stripes
The
following excerpt from Wikipedia, gives an interesting
explanation of the striped pattern on
zebras:
“Zebras are
black or dark animals with white stripes and their
bellies have a large white blotch for camouflage
purposes. Some zebras have brown "shadow stripes" in
between the white and black
coloring.
Zebras are described as black with
white stripes rather than the reverse for the following
three reasons:
-
White
equids would not survive well in the African plains
or forests.
-
The quagga, an extinct Plains
zebra subspecies, had the zebra striping pattern in
the front of the animal, but had a dark
rump.
-
When the region between the
pigmented bands becomes too wide, secondary stripes
emerge, as if suppression was
weakening.
The fact that some zebras have pure
white bellies and legs is not very strong evidence for a
white background, since many animals of different colors
have white or light colored bellies and
legs.
The stripes are typically vertical on
the head, neck, forequarters, and main body, with
horizontal stripes at the rear and on the legs of the
animal. The "zebra crossing" is named after the zebra's
black and white stripes.
Some zoologists believe that the
stripes act as a camouflage mechanism. This is
accomplished in several ways. First, the vertical
striping helps the zebra hide in grass. While seeming
absurd at first glance considering that grass is neither
white nor black, it is supposed to be effective against
the zebra's main predator, the lion, which is color
blind. Theoretically a zebra standing still in tall grass
may not be noticed at all by a lion. Additionally, since
zebras are herd animals, the stripes may help to confuse
predators - a number of zebras standing or moving close
together may appear as one large animal, making it more
difficult for the lion to pick out any single zebra to
attack. A herd of zebras scattering to avoid a predator
will also represent to that predator a confused mass of
vertical stripes travelling in multiple directions making
it difficult for the predator to track an individual
visually as it separates from its herdmates, although
biologists have never observed lions appearing confused
by zebra stripes.
Stripes are also believed to play a
role in sexual attractions, with slight variations of the
pattern allowing the animals to distinguish between
individuals.
A more recent
theory, supported by experiment, posits that the disruptive
colouration is also an effective means of confusing the visual
system of the blood-sucking tsetse fly. Alternative theories
include that the stripes coincide with fat patterning beneath
the skin, serving as a thermoregulatory mechanism for the
zebra, and that wounds sustained disrupt the striping pattern
to clearly indicate the fitness of the animal to potential
mates.”
Did You
Know?
Romans called
Grevy's zebras 'hippotigris' and trained them to pull
two-wheeled carts for exhibition in
circuses.
Test
your knowledge with this Quiz

- Article 1
Is a zebra white with black stripes or black with white stripes?
- Article 2
The development of striping patterns.
- Article 3
Differences between the species.
- Article 4
Domestication of zebras.
- Article 5
Hybrid equines.
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