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D.R. Niraj
Adhikari, 27 February 2016 – The video is about animal fighting with the
strongest and incredible animals. As we can see in the video many
animals of same genus are fighting with each other. The tiger’s closest
living relatives are the lion, leopard and jaguar, all of which are
classified under the genus Panthera. A 2010 genetic analysis shows the
tiger began evolving 3.2 million years ago, and it may be more closely
related to the snow leopard than other Panthera species.
The oldest remains
of an extinct tiger relative, called Panthera zdanskyi or the Longdan
tiger, have been found in the Gansu province of northwestern China. This
species is considered to be a sister taxon to the extant tiger and
lived about 2 million years ago, at the beginning of the Pleistocene. It
was smaller than the modern tiger, being the size of a jaguar, and
probably did not have the same coat pattern.
Despite being
considered more "primitive", the Longdan tiger was functionally and
possibly ecologically similar to its modern cousin. As Panthera zdanskyi
lived in northwestern China, that may have been where the tiger lineage
originated.
Tigers grew in
size, possibly in response to adaptive radiations of prey species like
deer and bovids which may have occurred in Southeast Asia during the
early Pleistocene. The earliest fossils of true tigers are from Java,
and are between 1.6 and 1.8 million years old. Distinct fossils are
known from the early and middle Pleistocene deposits in China and
Sumatra.
A subspecies
called the Trinil tiger (Panthera tigris trinilensis) lived about 1.2
million years ago and is known from fossils found at Trinil in Java.
Tigers have muscular bodies with powerful forelimbs, large heads and
long tails. The pelage is dense and heavy; coloration varies between
shades of orange and brown with white ventral areas and distinctive
vertical black stripes, whose patterns are unique to each individual.
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