Two opposing scenarios, the "arboreal" hypothesis and the "cursorial" hypothesis, have traditionally been put forward concerning the origins of bird flight.
关于鸟类飞行的起源，传统上提出了两种对立的假设：“地栖说”和“树栖说”。
Squirrels are arboreal creatures.
松鼠是栖于树上的动物。
Were the first flyers arboreal creatures that initially glided from tree tops to the ground?
最初的飞行动物是首先从树梢滑翔到地面的树栖动物吗？
Tattersall says it makes sense that arboreal primates may have been "primed, " for upright walking on the ground.
塔特索尔说，为在地面直立行走，树栖灵长类动物可能已被“预先准备好”。
The point of the scary frill is to give the lizard enough time to beat a hasty retreat, rocketing up the nearest arboreal loft.
恐吓皱褶的目的是给蜥蜴足够的时间仓皇撤退，窜入最近的树丛中。
Monkeys live in an arboreal habitat.
猴子生活在树上的栖息地。
Koala is an arboreal Australian marsupial.
考拉是一种澳大利亚树栖有袋动物。
For the arboreal reptiles and amphibians, to create a three-dimensional habitat.
为树栖爬行动物和两栖动物，创建一个三维栖息地。
The Baron in the Trees is the wonderfully witty novel of Cosimo's unique arboreal existence.
《树上的男爵》是一部关于柯西莫独一无二的树栖生活的小说，书中的想象力和智慧令人叹服。
Additionally, the structure of tarsometatarsus and the pedal digits presents obviously arboreal adaptation.
跗跖骨结构以及足趾近、远端趾节的长度反映了明显的树栖性特征。
Statistic analysis of these 6 variables showed that they could be used to well distinguish arboreal and terrestrial birds.
对这6个变量的分析表明，它们对于区别鸟类的栖息习性具有显著的指示作用。
The frogs' lifestyle is so thoroughly arboreal that, instead of laying eggs in water, the frogs deposit their eggs in trees.
这种蛙完全在树上生活，他们不在水中而是在树上产卵。
Once hunted for its fur, this arboreal leaf-eater is today protected by stringent laws and is making a slow but steady comeback.
这种以树为家的吃叶族曾经因其毛皮而遭猎捕，如今因受到严格法令的保护，其数量成长正慢慢地回稳。
Shaggy giants from an arboreal world, the tall and commanding Wookiee species is an impressive sight to even the most jaded spacer.
这是一群来自森林世界的巨人，伍基族毛发浓密、高大而威严，甚至连最疲惫不堪的飞行员都对他们印象深刻。
Koala: an arboreal Australian marsupial that has dense grayish fur, large ears, and sharp claws and feeds chiefly on the leaves of eucalyptus trees.
树袋熊，考拉：一种澳大利亚树栖有袋动物，长有浓密的灰毛、大耳朵和尖利的爪子，主要以桉树的树叶为食。
Perched on a high-elevation cloud forest leaf the arboreal Hispaniolan crowned frog had not been seen since 1991 until this picture was taken in October 2010.
栖息在高海拔的云雾林的叶片上的伊斯帕尼奥拉蛙从1991年就不见踪影，直到2010年10月才拍得这张照片。
Studies of the habits and the flight capability of these early birds also provide further evidence for the arboreal hypothesis of the origin of avian flight.
对这些鸟类生活习性和飞行能力的研究还支持了鸟类飞行的树栖起源假说。
There are about 10 species of frogs in Taiwan belonging to the tree frog family, most of them are arboreal and nocturnal, hiding in corners both dark and humid.
台湾约有十种树蛙科的青蛙，多半是树栖性的，白天躲在阴暗潮湿的地方，晚上才出来活动。
Any of several principally arboreal carnivorous mammals of the genus martes related to the weasel mainly inhabiting northern forests and having a slender body bushy tail and soft fur.
貂几种貂属的主要栖居于树上的食肉哺乳动物的统称，与鼬类动物有亲缘关系，主要栖居在北部森林。体形细长，尾部毛浓密，皮毛柔软。
Any of several principally arboreal carnivorous mammals of the genus Martes, related to the weasel, mainly inhabiting northern forests, and having a slender body, bushy tail, and soft fur.
貂几种貂属的主要栖居于树上的食肉哺乳动物的统称，与鼬类动物有亲缘关系，主要栖居在北部森林。
Were the first flyers arboreal creatures that initially glided from tree tops to the ground? Or were they bipedal ground runners whose evolving wings allowed them to take progressively longer jumps?
最早的鸟类是从树上向地面滑翔的树栖生物，还是因进化出了翅膀而逐渐喜欢长距离跳跃的两足陆生动物？
Arboreal marsupials may not recover to pre-logging densities.
树袋动物的密度可能无法恢复到伐木以前了。
Arboreal civet of Asia having a long prehensile tail and shaggy black hair.
亚洲树栖的灵猫，有易于缠绕的长尾巴和粗浓的黑毛。
Arboreal pollen in alluvium mainly came from the surface pollen fallen on the ground in spring which was carried by sheet flow during the floods.
洪水期冲积物中的木本植物花粉主要是由雨水片流将春季落入表土的花粉带入河水中所致。
Arboreal pollen in alluvium mainly came from the surface pollen fallen on the ground in spring which was carried by sheet flow during the floods.
洪水期冲积物中的木本植物花粉主要是由雨水片流将春季落入表土的花粉带入河水中所致。
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