This document contains code for tracking timing metrics on YouTube videos. It includes scripts to start timers when pages load and events occur, and to record information about the page load speed, video connection, and other values. The document also contains styles for formatting different elements on YouTube watch pages, like the video description, comments, and related videos sections.
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href="http://www.youtube.com/opensearch?locale=en_US" title="YouTube Video Search">
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<meta name="title" content="San Diego Zoo ZEBRAS Zebra harem in HD High
Definition the best animals wildlife">
<meta name="description" content="ZEBRA Harem at the San Diego Zoo the best
animals wildlife<br><br>Stripes<br><br>Zebras are black or
dark animals with white stripes and their bellies have a large white blo...">
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Zebra, Zebras, Zebra&#39s, HD, high, definition, lonely, stallion, envy,
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Definition the best animals wildlife" />
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Zoo ZEBRAS Zebra harem in HD High Definition the best animals wildlife" />
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<meta property="og:description" content="ZEBRA Harem at the San Diego Zoo the
best animals wildlife<br><br>Stripes<br><br>Zebras are
black or dark animals with white stripes and their bellies have a large white
blo..." />
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Uploaded by <a class="author" href="/user/JamesHGraff">JamesHGraff</a>
on Jan 27, 2009
</p>
<div id="watch-description-text">
<p id="eow-description" >ZEBRA Harem at the San Diego Zoo the best animals
wildlife<br /><br />Stripes<br /><br />Zebras are black or dark animals with white
21. stripes and their bellies have a large white blotch for camouflage purposes.<br
/><br />Zebras are described as black with white stripes rather than the reverse
for the following three reasons:[3] 1. White equids would not survive well in
the African plains or forests.<br /> 2. The quagga, an extinct Plains zebra
subspecies, had the zebra striping pattern in the front of the animal, but had a
dark rump.<br /> 3. When the region between the pigmented bands becomes too wide,
secondary stripes emerge, as if suppression was weakening.<br /><br />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.[4] 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.<br
/><br />Stripes are also believed to play a role in sexual attractions, with slight
variations of the pattern allowing the animals to distinguish between
individuals.<br /><br />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.[5] 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.<br /><br />Harems<br /><br />Like most members of the horse family, zebras
are highly sociable. Their social structure, however, depends on the species.
Mountain zebras and Plains zebras live in groups, known as 'harems',
consisting of one stallion with up to six mares and their foals. Bachelor males
either live alone or with groups of other bachelors until they are old enough to
challenge a breeding stallion. When attacked by packs of hyenas or wild dogs, a
zebra group will huddle together with the foals in the middle while the stallion
tries to ward them off.<br /><br />Unlike the other zebra species, Grevy's
zebras do not have permanent social bonds. A group of these zebras rarely stays
together for more than a few months. The foals stay with their mother, while the
adult male lives alone. However like the other two zebra species, bachelor male
zebras will organize in groups.<br /><br />Like horses, zebras sleep standing up
and only sleep when neighbors are around to warn them of predators.<br /><br
/>Reproduction<br /><br />Like most animal species, female zebras mature earlier
than the males and a mare may have her first foal by the age of three. Males are
not able to breed until the age of five or six. Mares may give birth to one foal
every twelve months. She nurses the foal for up to a year. Like horses, zebras are
able to stand, walk and suckle shortly after they're born.</p>
</div>
<div id="watch-description-extras">
<h4>Category:</h4>
<p id="eow-category"><a href="/videos?c=15">Pets & Animals</a></p>
<h4>Tags:</h4>
<ul id="eow-tags" class="watch-info-tag-list">
<li><a href="/results?search_query=San&search=tag">San</a></li>
<li><a href="/results?search_query=Diego&search=tag">Diego</a></li>
<li><a href="/results?search_query=Zoo&search=tag">Zoo</a></li>