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標題: [瞬間看地球] 銀葉猴 金色年華轉瞬即逝 [打印本頁]

作者: vandas    時間: 2013-10-18 01:06 PM     標題: 銀葉猴 金色年華轉瞬即逝

銀葉猴 Silvered Leaf Monkey 體型和黑葉猴相差不大,全身毛色以灰褐色為主,頭發、鬢毛呈現銀白色,主要以樹葉、水果等為食。

新生的子猴的毛色則是橙色,面、手及腳則為白色。子猴在成長過程中會遂漸變黑,這個過程大約需要3-5個月的時間。 首先由頭部開始變橘黃色,然後頭、面、手、腳和耳朵轉為暗灰色。


He's gone grey early! Amazing photos show how baby langur monkey goes from bright orange to silver before its FIRST birthday


Many humans worry about finding their first grey hairs, but for one type of baby monkey, a distinguished grey coat replaces its fiery fur before it has its first birthday.

One wildlife photographer has captured the transformation of an adorable baby silver-leaf langur as its fur changes from vivid orange to grown up grey in central alaysia.

There are a number of theories as to why the creatures are born with such bright fur and they include keeping them safe from predators, stopping them getting separated from their mothers and even sending out a signal to the rest of the troop that they should start to think about childcare duties.



One photographer has captured the transformation of an adorable baby Silver-leaf langur as its fur changes from bright orange to grown up grey in central Malaysia

WHY DO SILVER-LEAF LANGUR BABIES CHANGE COLOUR?
There are three main theories:=

Professional photographer Thomas Marent, 47, got up close with the animals to capture a baby clinging to his mother in Kuala Selangor Nature Park, Malaysia.

The young animals' fur begins to change to grey starting with its head so that for a short period of time it looks quite strange with only its body a bright orange.

Adult monkeys have grey-tipped black fur that gives them a uniform silvery appearance as well as a distinctive crest of fur that runs along the top of their head and tufts of hair on their cheeks that obscure their ears.

The baby langurs are born with orange fur and turn to silver at approximately three months of age, although some can begin their transformation aged just one month, according to Beth McDonald, a senior keeper at the San Diego Zoo.

Writing on the zoo's blog, she said there are three main theories as to why the animals are born bright orange.

It is thought that the baby langur's vivid fur makes it easy for their mother to find them, as the young monkeys love to explore.


Baby Silver-leaf langurs are born with orange fur and turn to silver at approximately three months of age, starting with their heads (pictured left), although some can begin their transformation aged just one month. Their fur gradually becomes darker (pictured right) until their bodies turn grey too

According to the keeper, the babies are intrepid and can venture a little too far from their mothers, but their fur allows them to be found easily.

Another theory is that their orange colour helps the babies blend into their surroundings.

'It seems hard to believe that bright orange could be used as camouflage,unless maybe the orange would make them appear as a bright-colored flower on a tree. Most predators are colour blind and cannot tell the difference between orange and green,' she said.



Here, the young Silver-leaf langur has almost lost its orange fur - although it is still possible to see some patches on its back

Another theory is their orange colouring makes it obvious that there is a baby monkey in the troop so other adults should start to share the care of the infant.

'A baby langur can wear a mother out, so having a troop full of babysitters allows her to rest. The babysitters can also relieve the mother so she can get something to eat,' wrote Ms McDonald.

Silver-leaf langurs live in coastal and mangrove forests in Malaysia, Sumatra and Borneo and travel in groups of between nine and 40 individuals, with one adult male and a group of females caring for the babies of the troop.

They rarely leave the trees, which keep them largely safe from ground-dwelling predators such as leopards and tigers.

During the day they travel around 500 metres - some in all female sub groups - but congregate in a single tree to sleep over night.

Female silver-leaf langurs typically give birth once every 18 months to two years and a female attract a mate by shaking her head from side to side.

Females give birth to a single baby after a gestation period of between 181 and 200 days and the babies are born measuring around 20 centimetres with a strong grip so they can cling to their mother.



There are three main theories about why baby Silver-leaf langur's are born with bright orange fur (pictured) but one is that it makes it easier for its mother to find when the infant goes exploring in the forest. Females look after the baby animals collectively

While the baby's fur rapidly changes colour from orange to grey, it does not reach the adult pattern for three to five months after birth.

The creatures are classified as 'near threatened' as their natural habitats are being destroyed by logging and the development of oil plantations, while people also hunt them for meat and keep them as pets.
作者: fidodidow2k    時間: 2013-10-18 02:05 PM

感謝大大分享.
超酷滴說.
沒想到小小年紀就染髮.....
作者: antimatter    時間: 2013-10-23 04:28 AM

細時候係金絲猴,大咗就變黑葉猴
即係話銀葉猴成世都冇自己本色
作者: freshjive1212    時間: 2013-10-24 01:33 AM

果然是黄毛小子
作者: klamb    時間: 2013-10-24 03:40 AM

本帖最後由 klamb 於 2013-10-24 03:46 AM 編輯

很頑皮的小子..

相信的第一個是父親,晚一點來的是母親,她多一點關心 baby.

[youtube]ytsrxqYnmc8[/youtube]

作者: 麵包和牛奶    時間: 2013-10-24 09:42 AM

大個仔就變色啦···
作者: 676k    時間: 2013-10-24 09:44 AM

銀葉猴實在算是毛髮顏色轉變相當特殊的猴子呢!

從文章中敘述之所以會有如此毛髮顏色轉變的三大理論看來真的是很聰明的物種, 由於幼年時的亮橙色毛髮可以使母猴不至於看丟幼猴, 也可在綠色環境中騙過掠食者的眼睛, 還可以在同類中被成年的長輩們所疼愛與多加照顧, 真令人讚嘆生命的奧秘啊!

感謝攝影師Thomas Marent的拍攝也感謝vandas版主大大將這篇美麗且神奇的文章分享出來, 真的是讓小弟好好上了一課.
作者: TIGER5011    時間: 2013-10-24 08:40 PM

好像变种动物,文章看了才知道
作者: k8813849    時間: 2013-10-26 02:47 PM

金毛小猴長大變黑毛,我第一次看到,真是長了知識,多謝樓主無私地分享!!!
作者: lly6620    時間: 2013-10-27 05:10 PM

一開始還以為是金絲猴呢
原來是銀葉猴小的時候




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