Lizards filmed 'walking on water' 照片:蜥蜴“在水面上行走”
文章來源:未知 文章作者:meng 發布時間:2009-10-14 03:02 字體: [ ]  進入論壇
(單詞翻譯:雙擊或拖選)

Remarkable1 slow-motion footage has been taken of two lizards3 that seem to do the impossible - walk on water.

兩只蜥蜴被用慢鏡頭拍攝到似乎不可能的事情——在水面行走。

A "Jesus Christ" <a  target=lizard2, filmed from above and below the water" width="512" border="0" src="/upimg/091014/4_031403_1.jpg" />
A "Jesus Christ" lizard, filmed from above and below the water

A high-definition film, shot at 2,000 frames per second, shows a brown basilisk(蛇怪) lizard running across the surface of a pond in Belize.

More footage shows how a species of gecko(壁虎) is so tiny that it can walk across a puddle4(水池,水坑) without breaking the water's surface tension.

These amazing feats5(專長,特技) are captured for the BBC natural history series Life.

The group of animals known as basilisk lizards commonly lives along the edge of rivers running through rainforests, eating small insects among the foliage6(美人草).

The lizards need to bask7 in the sun(曬太陽) to warm up each day, which leaves them vulnerable to being caught by predators8(掠奪者,捕食者), such as large birds of prey9 hunting from the air, or carnivores(肉食動物) such as cats living on the jungle floor.

So the lizards have evolved an extraordinary escape mechanism10.

They drop into the water and then run across it, earning the lizards their nickname, the "Jesus" or "Jesus Christ" lizard.

Exactly how they do so is revealed by the slow-motion, high-definition footage taken at 2,000 frames per second.

"Because they run so fast they create a bubble as their feet hit the water and then they push off from this bubble before it bursts," says Simon Blakeney, a producer on the Life series who helped direct and film the footage of both reptiles11(爬行動物).

"They can only run at that speed. If they were going any slower, for example, they wouldn't stay upright, they would slip into the water and would have to swim."

Mr Blakeney and his colleagues filmed brown basilisk lizards (Basiliscus vittatus) running across ponds and rivers in the rainforest in Belize, around 60km from Belize City.

Capturing the footage of the animals in action proved tricky12.

"Around 80% of the time when they are escaping from things, they don't run, they swim. So filming them running was quite a difficult thing in itself."

The lizard has long thin toes that are covered by scales underfoot. These help create the air bubbles that enable the lizard to push off and walk across the water.

Scientists had also previously13 established that basilisk lizards produce massive sideways forces in their running stride(大步), which, perversely14(倔強地), help them stay upright.

Slowing the action of the film to 1/80th of its real-life speed reveals the true spectacle, says Mr Blakeney.

"As the water lifts up it makes this incredible trail of splashes(飛濺的水) behind it, like a pebble15(鵝卵石) dropping into the water.

"Then the lizard has already gone out of frame because they are so fast."



點擊收聽單詞發音收聽單詞發音  

1 remarkable 8Vbx6     
adj.顯著的,異常的,非凡的,值得注意的
參考例句:
  • She has made remarkable headway in her writing skills.她在寫作技巧方面有了長足進步。
  • These cars are remarkable for the quietness of their engines.這些汽車因發動機沒有噪音而不同凡響。
2 lizard P0Ex0     
n.蜥蜴,壁虎
參考例句:
  • A chameleon is a kind of lizard.變色龍是一種蜥蜴。
  • The lizard darted out its tongue at the insect.蜥蜴伸出舌頭去吃小昆蟲。
3 lizards 9e3fa64f20794483b9c33d06297dcbfb     
n.蜥蜴( lizard的名詞復數 )
參考例句:
  • Nothing lives in Pompeii except crickets and beetles and lizards. 在龐培城里除了蟋蟀、甲殼蟲和蜥蜴外,沒有別的生物。 來自辭典例句
  • Can lizards reproduce their tails? 蜥蜴的尾巴斷了以后能再生嗎? 來自辭典例句
4 puddle otNy9     
n.(雨)水坑,泥潭
參考例句:
  • The boy hopped the mud puddle and ran down the walk.這個男孩跳過泥坑,沿著人行道跑了。
  • She tripped over and landed in a puddle.她絆了一下,跌在水坑里。
5 feats 8b538e09d25672d5e6ed5058f2318d51     
功績,偉業,技藝( feat的名詞復數 )
參考例句:
  • He used to astound his friends with feats of physical endurance. 過去,他表現出來的驚人耐力常讓朋友們大吃一驚。
  • His heroic feats made him a legend in his own time. 他的英雄業績使他成了他那個時代的傳奇人物。
6 foliage QgnzK     
n.葉子,樹葉,簇葉
參考例句:
  • The path was completely covered by the dense foliage.小路被樹葉厚厚地蓋了一層。
  • Dark foliage clothes the hills.濃密的樹葉覆蓋著群山。
7 bask huazK     
vt.取暖,曬太陽,沐浴于
參考例句:
  • Turtles like to bask in the sun.海龜喜歡曝于陽光中。
  • In winter afternoons,he likes to bask in the sun in his courtyard.冬日的午后,他喜歡坐在院子曬太陽。
8 predators 48b965855934a5395e409c1112d94f63     
n.食肉動物( predator的名詞復數 );奴役他人者(尤指在財務或性關系方面)
參考例句:
  • birds and their earthbound predators 鳥和地面上捕食它們的動物
  • The eyes of predators are highly sensitive to the slightest movement. 捕食性動物的眼睛能感覺到最細小的動靜。 來自《簡明英漢詞典》
9 prey g1czH     
n.被掠食者,犧牲者,掠食;v.捕食,掠奪,折磨
參考例句:
  • Stronger animals prey on weaker ones.弱肉強食。
  • The lion was hunting for its prey.獅子在尋找獵物。
10 mechanism zCWxr     
n.機械裝置;機構,結構
參考例句:
  • The bones and muscles are parts of the mechanism of the body.骨骼和肌肉是人體的組成部件。
  • The mechanism of the machine is very complicated.這臺機器的結構是非常復雜的。
11 reptiles 45053265723f59bd84cf4af2b15def8e     
n.爬行動物,爬蟲( reptile的名詞復數 )
參考例句:
  • Snakes and crocodiles are both reptiles. 蛇和鱷魚都是爬行動物。 來自《簡明英漢詞典》
  • Birds, reptiles and insects come from eggs. 鳥類、爬蟲及昆蟲是卵生的。 來自《現代漢英綜合大詞典》
12 tricky 9fCzyd     
adj.狡猾的,奸詐的;(工作等)棘手的,微妙的
參考例句:
  • I'm in a rather tricky position.Can you help me out?我的處境很棘手,你能幫我嗎?
  • He avoided this tricky question and talked in generalities.他回避了這個非常微妙的問題,只做了個籠統的表述。
13 previously bkzzzC     
adv.以前,先前(地)
參考例句:
  • The bicycle tyre blew out at a previously damaged point.自行車胎在以前損壞過的地方又爆開了。
  • Let me digress for a moment and explain what had happened previously.讓我岔開一會兒,解釋原先發生了什么。
14 perversely 8be945d3748a381de483d070ad2ad78a     
adv. 倔強地
參考例句:
  • Intelligence in the mode of passion is always perversely. 受激情屬性控制的智力,總是逆著活動的正確方向行事。
  • She continue, perversely, to wear shoes that damaged her feet. 她偏偏穿那雙擠腳的鞋。
15 pebble c3Rzo     
n.卵石,小圓石
參考例句:
  • The bird mistook the pebble for egg and tried to hatch it.這只鳥錯把卵石當蛋,想去孵它。
  • The pebble made a ripple on the surface of the lake.石子在湖面上激起一個漣漪。
TAG標簽: water walking lizard footage
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