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Evolution of the Bengal Tiger

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by

Mo Vaughan

on 27 February 2014

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Transcript of Evolution of the Bengal Tiger

Evolution
Felines can be traces back 37 million years ago. The subfamily of
Felinae
were in Eurasia about 10 million years ago. From there it split into
Pantherinea,
into the genus
Panthera
where the species of jaguar, tiger, lion, and leapord are found. The tiger probably branched of into different species because of geographical differences.
Changes
The forests in which Bengal tigers live in are bring threatened by storms and rising sea levels that kill the prey that they hunt. One of theses forests is the Sundarbans. However, when the tigers leave the forest in search of food, they are at risk of being killed by humans. The tiger may need to survive to eat a larger range of food, or to get used to a wetter environment.
The Future
I believe that in 50 years the Bengal tiger will look pretty much the same with a few additions. I think the Bengal tiger will have webbed paws and will be eating more fish. This will be because the tiger will have had to adapt to a wetter environment.
Evolution of the Bengal Tiger
Adaptations
The Bengal tiger's orange color and stiped coat may seem like some thing that attracts the eye, but its color blends in with sunlight filtering through the trees in forests. Also, tigers can hear extremely well, which is a useful hunting adaptation.
The Bengal tiger, whose scientific name is
panthera tigris tigris,
is a carnivorous mammal with that lives about eight to ten years. The Bengal tiger is the most common tiger. The Bengal tiger has the characteristic black stripes, but a variation of the tiger is white instead of the orange most commonly known.
Habitat
The Bengal tiger lives in forests or grasslands. It is most commonly found in India, but it is also found in Bangledesh, Nepal, Bhutan, China and Myanmar.
General Information
Description
Pictures
Fitness and Selection
Tigers are able to mate about three or four times in their life time, which contributes to the gene pool. The Bengal tiger only goes through goes through natural selection, because it is a wild animal. However, some tigers are held in captivity, and those tiger do through artificial selection, in that the mate is provided to the tiger.
Struggle for Existence
Genetic Variation
A genetic variation of the Bengal tiger is the White tiger. The white tigers color is caused by a defective gene passed on through inbreeding. White tigers are not often seen in the wild as their coat does not allow them to camouflage.
The Bengal tiger earliest ancestor was the proailurus. It was small and about 21 inches in height.
Phylogenic tree
The tiger has many homologous structures that correspond with other animals, such as the forelimb. The tiger has an appendix that is not of use to it.
Works Cited
Information:

Bengal Tiger. (2012, September 13). WorldWildlife.org. Retrieved February 20, 2014, from https://worldwildlife.org/species/bengal-tiger

feline. (2014). In Encyclopædia Britannica. Retrieved from http://www.britannica.com/EBchecked/topic/98895/feline/253012/Form-and-function

Tiger Info Book. (n.d.). SeaWorld Parks & Entertainment. Retrieved February 23, 2014, from http://seaworld.org/en/animal-info/animal-infobooks/tiger/

The Beginning of Cat History. (n.d.). Land of the Big Cats. Retrieved February 23, 2014, from http://whitestarsship.tripod.com/cathistory/tobegi

Video:

Last chance to save the Wild Tiger? | WWF. (2010, April 15). YouTube. Retrieved February 23, 2014, from
ww.youtube.com/watch?v=EmNWWZCW80Q

Pictures:

Bengal Tiger. (2012, September 13). WorldWildlife.org. Retrieved February 20, 2014, from https://worldwildlife.org/species/bengal-tiger

Harimurtie, T. (n.d.). White Bengal Tigers. Prolonging me: Time To Speak UP!!. Retrieved February 23, 2014, from http://tioharimrtie.blogspot.com/2011/01/white-bengal-tigers.html

Les proailurus. (n.d.). Centerblog. Retrieved February 23, 2014, from http://angel78690.centerblog.net/2-Les-proailurus

Lion v Tiger. (2012, January 17). Carnivora. Retrieved February 24, 2014, from http://carnivoraforum.com/topic/9348622/1
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