Kanchanat+S.

Elephants are biggest planet animal on earth. They are mostly found in Africa and south east Asia. In the past human used them to fright in war and for transportation. Elephants have long relationship with human. Elephants are consider as one of the smartest and most loyalty pet. In some country elephant becomes a symbol of the countries, such as Thailand. First elephant ancestor began their trek through the evolutionary cycle 60 million years ago. (elephanatsfoever.com) Mammoth is one of the well known elephant ancestor. Elephant ancestor started of called Palaeomastodon, which was an animal that had tusks, both upper and lower. It had a trunk. It was 1 to 2 meters tall and weighed up to 2 tonnes. The lower tusks were flat rather than pointed cones, and were probably used to scoop plants from swampy water. (ecotravel) Then the next ancestor was called Primelepha. The name mean the first elephant. (himandus) This animal was ancestor of Mammoths, african and Asian elephant. With its large size, distinctive tooth structure and long trunk, this [|prehistoric elephant] was very similar to modern pachyderms(modern elephant), the only notable difference being the smallish "shovel tusks" jutting out of its lower jaw.
 * Elephant evolutionary**



Then its separated into three categories, which are mammoth, Asia elephant, and Africa elephant. However, mammoth extinct. Mammoth had a lot bigger size than both asian and Africa elephant. M ammoth had enormous tusks which would have been used for both digging and collecting food, and for intimidating and fighting off both predators and rivals. The tusks of the woolly mammoth were often quite dramatically curved and could easily be up to 5 meters (16ft) long

Asian elephants mostly are found in Thailand, Laos, Cambodia, and India. This appearance of this kind of elephant is just common elephant looking. However, Asian elephant is a little bit smaller than Africa elephant.

Asian elephant African elephant

As you can see from the picture, African and asian elephant look very similar. Only african elephants have bigger ears, and usually have shorter tusks. media type="custom" key="25231100" align="center"

Further reading: african elephant: http://animals.nationalgeographic.com/animals/mammals/african-elephant/ asian elephant: http://animals.nationalgeographic.com/animals/mammals/asian-elephant/

elephant evolutionary: http://www.elephantsforever.co.za/elephant-evolution.html#.Uw6M1nmf9g0 http://www.eleaid.com/elephant-information/elephant-evolution/ https://worldwildlife.org/species/elephant

Resources http://nationalzoo.si.edu/animals/asianelephants/ http://nature.ca/notebooks/english/afeleph.htm http://finstofeet.com/2011/05/21/elephant-evolution/ http://www.elephant.se/elephant_evolution.php?open=Evolution%20of%20elephants http://www.earthlife.net/mammals/elephants.html http://palaeo.gly.bris.ac.uk/Palaeofiles/Elephants/ http://www.elephantsforever.co.za/elephant-evolution.html#.Uw6ODHmf9g0 http://www.himandus.net/elefunteria/library/science+nature/evolution.html

Elephant classify in kingdom Animalia, class Memmal, which is in the same class with human and other common animals, such as dog and cat. Animals in this class their reproductive system are complex, so as elephant. However, elephants are the biggest animal on the planet, so they have a very large reproductive track, long pregnancies, produce large calves that require a long developmental period and reproduce infrequently with the inter-calf interval as long as 5 years.
 * Elephant Reproductive** **System**

(nationalgeography)

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 * Male Reproductive System**

Elephant male reproductive system made up of testicles, penis, bulls, and musth. However, unlike other animal elephant's testicles are located inside elephant, near the kidneys. (elephant love.com) Since elephant is the biggest animal on the planet, male elephant also has the longest reproductive track, that is two meters long.(elephanttage.org)

Sperms are being produce in the bulls. Elephant male reproductive system start when young elephant in around the age of 10 to 15. When the bulls are ready for reproduction they call it musth bulls. That is when male will find a mate.

Female reproductive system made up of vagina, uterus, overies, and vestibule. A cycling female, or cow, may vocalize and show greater interest and enthusiasm for bulls. Bulls will test the cow’s readiness to breed by performing a flemen behavior, which uses his trunk to bring urine samples to the veromonasal receptors in the roof of the mouth. These sensory receptors send chemical signals to the elephant’s brain telling him if the female is ready to breed. Courtship may last from 1 hour to 4 days where the bull will stay near the cow and guard her from other bulls while he occasionally mates with her. (elephanttag.org)
 * Female Reproductive System**

After 1 to 3 days, the cow will no longer be receptive to breeding or be capable of conceiving. Typically, wild cows will begin reproducing at 12-14 years of age(thaielephant.com) However, the reproductive age also base on what kind of food available, and sometimes also involved weather. So that why elephant in the zoos will go in the reproductive agar faster than wild elephants.



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 * Elephant Birth**

Once the cow becomes pregnant, she has a long wait before the calf is born. The length of pregnancy, or gestation time, can vary between 21-23 months.

Almost two years of carrying baby, often the mother get hurt and become angry, and ended up killed her own child. However, elephant giving in a zoo or an elephant farm, usually get a lot of help from human, so that the mother will not end up kill her new born, or bleed to death.

Further reading elephant birth news: http://www.dailymail.co.uk/news/article-2424349/Elephant-tramples-baby-death-just-moments-born-German-Zoo.html http://www.arkive.org/african-elephant/loxodonta-africana/video-09c.html

Male elephant reproductive system: http://www.elephanttag.org/general/general_elephant_reproduction.html http://www.smithsonianmag.com/science-nature/how-male-elephants-bond-64316480/?no-ist http://www.slate.com/blogs/quora/2014/01/16/how_do_adult_male_elephants_interact_with_other_elephants.html

Musth condition in male elephant: http://en.wikipedia.org/wiki/Musth http://www.elephant.se/musth.php http://www.thailandelephant.org/blog/musth-elephant/

Female reproductive: http://www.thailandelephant.org http://www.elephantsforever.co.za/matriarch-elephant.html#.U2P5Hdyf9g0

Resources http://www.elephantsforever.co.za/index.html#.U2P5P9yf9g0 http://www.elephanttag.org/general/general_elephant_reproduction.html http://www.elephantnaturepark.org http://www.blueelephantthailandtours.com Mr. Ben Klongdee from Thailand elephant farm of Ayuttaya email: thawat.k@airportthai.co.th

Let get away from elephants and come back to humans! One topic we talked in class that really hit me, **women are multitasking better than men?**

Yes, that is not just a random facts. Women are multitasking better than men. For example: IES exchange student datas shows that most girl students are faster English learner than men; or fun example like someday you might turn around and see your mom(or wife), holding babies, cooking, talking on the phone at the same time.

Why Why Why? Human brains are separate into two different part, left and right. Scientists have proved that women have far better connections between the left and right sides of the brain, while men display more intense activity within the brain’s individual parts, especially in the cerebellum, which controls motor skills. (dailymail) 

As stated earlier, women have bigger middle brain part than men.(in usual) This part called
 * mesencephalon. **Mesencephalon is responsibility for controlling all of the nervous system. Basically this part of brain control your movement, vision, and hearing. Therefore, this is a scientific prove of why women can multitasking better than men.

so then **what are men good at?**