羊驼英文名：alpaca。
羊驼为偶蹄目、骆驼科的动物，体重55-65千克，头体长度1200-2250毫米。外形有点像绵羊，一般栖息于海拔4000米的高原。每群十余只或数十只，由1只健壮的雄驼率领。以高山棘刺植物为食。
发情季节争夺配偶十分激烈，每群中仅容1只成年雄驼存在。雌性羊驼妊娠期11.5个月，每胎1仔。春夏两季皆能繁殖。
羊驼性情温驯，伶俐而通人性，除野生种外，还有相当数量的驯良种，被印第安人广泛地用作驮役工具，适于圈养，是南美洲重要的畜类之一。
羊驼的毛比羊毛长，光亮而富有弹性，可制成高级的毛织物。世界现有约300万只左右，约90%以上生活在南美洲的秘鲁及智利的高原上，其余分布于澳洲的维多利亚州以及新南威尔士州。
扩展资料：
羊驼体重55-65千克，头部和身体的长度范围在1200-2250毫米，尾长150-250毫米，肩高900-1300毫米。拥有修长的身材和颈部。
头小，耳朵大而尖。毛皮外套均匀或多色。据“羊驼业主和育种者协会”统计，羊驼的行色多达22种，从白色到黑色和棕色。成年雄性的上下门齿和犬齿发展成斗齿或尖牙，可达3厘米长。雌性的这些牙齿发展不亚于雄性。除牙齿形态的差异，羊驼的两性异形不明显
兔子 鸭子 蛇和鹰 英文版
外貌
The?snow?leopard?is?a?moderately?large?cat?native?to?the?mountain?ranges?of?South?Asia?and?Central?Asia.?The?classification?of?this?species?has?been?subject?to?change?and?its?exact?taxonomic?position?will?not?be?resolved?until?further?studies?are?conducted.
Snow?leopards?live?between?3,000?and?5,500?metres?(9,800?and?18,000?ft)?above?sea?level?in?the?rocky?mountain?ranges?of?Central?Asia.?Their?secretive?nature?means?that?their?exact?numbers?are?unknown,?but?it?has?been?estimated?that?between?3,500?and?7,000?snow?leopards?exist?in?the?wild?and?between?600?and?700?in?zoos?worldwide.
Snow?leopards?are?smaller?than?the?other?big?cats?but,?like?them,?exhibit?a?range?of?sizes,?generally?weighing?between?27?and?54?kilograms?(60?and?120?lb).?Body?length?ranges?from?75?to?130?centimetres?(30?to?50?in),?with?the?tail?adding?an?additional?75?to?90?percent?of?that?length.
Snow?leopards?have?long?thick?fur,?whose?base?colour?varies?from?smoky?grey?to?yellowish?tan,?with?whitish?underparts.?They?have?dark?grey?to?black?open?rosettes?on?their?body?with?small?spots?of?the?same?color?on?their?heads?and?larger?spots?on?their?legs?and?tail.?Unusually?among?cats,?their?eyes?are?pale?green?or?grey?in?colour.
Snow?leopards?show?several?adaptations?for?living?in?a?cold?mountainous?environment.?Their?bodies?are?stocky,?their?fur?is?thick,?and?their?ears?are?small?and?rounded,?all?of?which?help?to?minimize?heat?loss.?Their?paws?are?wide,?which?distributes?their?weight?better?for?walking?on?snow,?and?have?fur?on?their?undersides?to?increase?their?grip?on?steep?and?unstable?surfaces;?it?also?helps?to?minimize?heat?loss.?Snow?leopards'?tails?are?long?and?flexible,?helping?them?to?maintain?their?balance?which?is?very?important?in?the?rocky?terrain?they?inhabit;?the?tails?are?also?very?thick?due?to?storage?of?fats,?and?are?very?thickly?covered?with?fur?which?allows?them?to?be?used?like?a?blanket?to?protect?their?faces?when?asleep.
The?snow?leopard?has?a?short?muzzle?and?domed?forehead,?containing?unusual?large?nasal?cavities?that?help?the?animal?breathe?the?thin?cold?air?of?their?mountainous?environment.
Snow?leopards?cannot?roar,?despite?possessing?some?ossification?of?the?hyoid?bone.?This?ossification?was?previously?thought?to?be?essential?for?allowing?the?big?cats?to?roar,?but?new?studies?show?that?the?ability?to?roar?is?due?to?other?morphological?features,?especially?of?the?larynx,?which?are?absent?in?the?snow?leopard.?Snow?leopard?vocalizations?include?hisses,?chuffing,?mews,?growls,?and?wailing.
Population?and?protected?areas?现状
The?total?wild?population?of?the?snow?leopard?was?estimated?at?only?4,080?to?6,590?individuals?by?McCarthy?et?al.?2003?(see?table?below).?Many?of?these?estimates?are?rough?and?outdated.
In?1972?the?International?Union?for?Conservation?of?Nature?(IUCN)?placed?the?snow?leopard?on?its?Red?List?of?Threatened?Species?as?globally?"Endangered";?the?same?threat?category?was?applied?in?the?assessment?conducted?in?2008.
There?are?also?600-700?snow?leopards?in?zoos?around?the?world.（现存数量参见附图）
Conservation?保护
There?are?numerous?agencies?working?to?conserve?the?snow?leopard?and?its?threatened?mountain?ecosystems.?These?include?the?Snow?Leopard?Trust,?the?Snow?Leopard?Conservancy,?the?Snow?Leopard?Network,?and?the?Panthera?Corporation.?These?groups?and?numerous?national?governments?from?the?snow?leopard's?range,?non-profits?and?donors?from?around?the?world?recently?worked?together?at?the?10th?International?Snow?Leopard?Conference?in?Beijing.?Their?focus?on?research,?community?programs?in?snow?leopard?regions?and?education?programs?are?aimed?at?understanding?the?cat's?needs?as?well?as?the?needs?of?the?villagers?and?herder?communities?impacting?snow?leopards'?lives?and?habitat.
Rabbits, ducks, snakes and eagle
Animal WangGuoXin started a school in succession, animal parents send their children to come here to learn. The school opened 4 courses: running lesson, lesson, swimming lessons and crawl flying lessons. In this school animals must learn the four course.
The rabbit in the running class always lead the way. Is the rabbit crawling class but average performance. The worst is swimming lessons and flying lessons. The rabbit first dip is almost drowned. Now it just see the water, systemic cringe. Put it against the most badly is flying lessons. Flying lesson request to all participants in heaven flight, the rabbit had wings, how can fly? It had to run to a house top, jump down, hoping to find the "flying" feeling. Feeling is found, but it is only for an instant, it broke two in his leg. Now the rabbit even running all failed, have to take home.
Ducks are swimming class leader, it in the water than the kung fu even outshone teacher. But it was in flight, although long a pair of wings in the air, but it could not only a few PuShan flying wings just. The ducks running achievement is horrible. Because it runs so slowly, school every day, will be the teacher to stay running. That has webbed feet were the earth stone of the water was broken, rub the other students ridicule. Because it was walking too ugly, bottom a twist. Ducks inferiority pole, hate oneself not to run of quick, rabbit's hate his not to eagle that fly high, hate oneself can't climb quickly to the snake that, hate oneself grow too ugly.
Snakes crawling scores of his class-mates, swimming performance
采我吧
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本文概览：羊驼英文名：alpaca。羊驼为偶蹄目、骆驼科的动物，体重55-65千克，头体长度1200-2250毫米。外形有点像绵羊，一般栖息于海拔4000米的高原。每群十余只或数十只，由...