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俨然好奇心双语看世界
小猪会做家务吗
鲸鱼会用泡泡捕鱼吗
大树会流血吗
大自然无奇不有
让我们行动起来
一探究竟
在自然界中
有一种身怀绝技的小动物
它们的皮肤可以变换不同的颜色
就像是换上了颜色各异的花衣裳
它们的名字也很霸气
带一个龙字
但它们其实不是龙
而是一种蜥蜴
你们猜到这是什么动物了吗
没错
就是变色龙
变色龙是一种非常奇特的爬行动物
常常生活在树上
因其身体的颜色能够变化而得名
目前科学家已经发现的变色龙有两百零二种
而在非洲的马达加斯加这一个地方
就有将近一百种
不少人认为变色龙变换颜色是为了隐蔽自己
但最新的科学研究发现
变换颜色也是变色龙之间的一种交流方式呢
变色龙是一位敏捷的捕食者
他的秘密武器就是长度可以达到身体两倍长的舌头
他们的舌头构造独特
就像人类使用的弓箭
可以快速的弹射出去
不给猎物任何逃脱的机会
小探险家们
我们一起去看看吧
thethereindependentlyrotatingeyescolorchangeabilities
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theyrelongtongue
thattheyprojectoutoftheirmouth
andtheyreslowdeliberatemovements
communionsareanimalsthatmostpeoplewereregardashighlycareasmatgii
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andofthetwoinjandtwocommunilionspeciesthatarecurrentlydescribedsciencefortytwopercentoccuronmagaskar
oneoftheoldstheoriesaswhycommmillionschangecolorwasthattheywerechangingcolormatchtheirbackground
butwhatwenowknowisthatitsactuallyacommunicationstrategymale
malecombatwillelicitsomeofthemostimpressivecolorationsfrommales
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havediscoveredthatthesuperficiallayerofcommmillionskinhaspiggantsinit
andunderthatthearecellswithsmallguanningcryystals
commmillionschangecolorbyactivelytuningthesebasingbetweentheseguwnyandcrystals
andwhatthatdoesisitchangesthewavelengthoflight
thathasreflectedoffforthosecrystals
andtherebychangesthehuworthecolorofthecommmillions
nowcommmillionshavealwayshavebeenconsideredamasterofcamneflalodge
whenofthat
thatacactuallybehavial
whencommmillionsaremovinginthebranchesormovingalongtheground
theydoaverycharacteristicbackinforthmotion
andwhatyreactuallydoingismimmicalefFAbranchinthewind
andtryingtobreakupatypicalmovementpatternofananimalrunningfromapreator
thecommmuliantongugueisactuallyahighlycomplexarrayofboneelasticelementsandmusclecommmulianscanprojecttheirtonguesuptotwobodylengthfromtheirmouth
nowthisisdoneatspeedsofaboutfivepointeightmeterspersecondoraboutthirteenmilesanhour
tongueprojectionincommmillionsissimilarandalotwaystoabowinerrorbeforethetongueisactuallylaunched
ortheerrowmuscleaction
loadselasticelementsandsointhebowanderero
thatswhenthearmactuallypullsthebowbacktongue
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anditstherecoilofthoseelastictissuesorthatbowthatcausesthelaunchofthetongueorthetheerrowinthebowandarrow
example
thirtysixpercentofmillionspeciesthatthreatenedwithextinctionthereareninespecieswhichareregardedascriticallyendangered
andthirtysevenspeciesthatareregardedasendangeredthemainthreatstomillionsinthewildisactuallyhabitatalterationanddeforeststation
becausesomecommmillionsarefoundonlyinaspecifictypeofhabitatonasinglemountain
thismakesthemhighlyrangerestricted
butwhenthatrangerestrictioniscombinedwithotherpressuresontheirhabitat
alotofthesespeciesbecomeendangercommunionsoffascinatedscientistsandnaturalalists
centurturiesitssomethingthatwerestilllearningalotabout