他偶然发现了一个450万年前的有袋动物的颌骨。
He came across the jawbone of a 4.5 million-year-old marsupial.
今天，这种生物被称为袋鼠，是澳大利亚特有的有袋动物。
Today, this creature is known as the kangaroo, a widespread marsupial endemic to Australia.
欧文发现，惠灵顿洞穴里的骨头是从一种有袋动物身上抽取的。
Owen recognized that the Wellington cave bones belonged to an extract marsupial.
明斯特大学的一个研究小组根据DNA 绘制了一个有袋动物的族谱。
A University of Muenster team drew up a marsupial family tree based on DNA.
古生物学家彼得·默里在澳大利亚北部研究过一幅岩画，画中显示的非常像是一种被叫做袋貘的巨型有袋动物。
Paleontologist Peter Murray has studied a rock painting in far northern Australia that shows what looks very much like a megafauna marsupial known as Palorchestes.
考拉是一种澳大利亚树栖有袋动物。
这些都是非常巨大的有袋动物。
无尾熊和袋鼠是最普遍的有袋动物。
它是一种特殊的动物，叫做有袋动物。
Kangaroos are part of a special category of animals, called marsupials.
腹袋是有袋动物的特色。
腹袋是有袋动物的特色。
塔斯马尼亚恶魔是世界上体型最大的食肉有袋动物。
'the Tasmanian devil is the world's largest carnivorous marsupial.
专家说，有袋动物一直是一个四轮驱动车的大小，重达三吨。
The plant-eating marsupial would have been the size of a four-wheel drive car and weighed three tonnes, experts say.
虽然有时被称为“考拉熊”，这种澳洲有袋动物却根本不是熊。
At times referred to as "koala bear," this Australian marsupial is not a bear at all.
作为世界上最大的食肉有袋动物，竞争对手最好明智地离他远一点。
As the largest carnivorous marsupial in the world, competitors would be wise to stay clear.
但它们绝对不是怪胎，事实上，这些友好善良、毛茸茸的有袋动物叫做蜜袋鼯。
But far from being an oddity, these friendly furry marsupials are in fact a type of possum known as a sugar glider.
“我们发现了迄今所知最巨大的有袋动物，”他告诉英国广播公司。
"We found the most gigantic marsupial ever known," he told the BBC.
研究人员表示，这是世界上最漂亮的袋鼠，同时也是栖息在丛林地区最为珍贵的有袋动物。
The animal is the rarest arboreal, jungle-dwelling kangaroo in the world, the researchers say.
这种有袋动物其数量在过去几十年间逐渐减少，主要原因是城市的扩张、车祸和狗的袭击。
The marsupial has been in decline for decades due to urban sprawl and from car accidents and dog attacks.
全世界最小的有袋动物只不过45毫米，小到待其完全长大时还能够舒舒服服地站到一只点心匙上。
The smallest marsupial in all the world is but 45mm in length. So small that when fully grown it can stand comfortable in a dessert spoon.
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。
Koala: an arboreal Australian marsupial that has dense grayish fur, large ears, and sharp claws and feeds chiefly on the leaves of eucalyptus trees.
袋熊一种健壮结实的、穴居的、澳大利亚袋熊科有袋动物，有些像小狗熊，主要以草、树叶和植物的根为食。
Any of several stocky, burrowing, Australian marsupials of the family Vombatidae, somewhat resembling a small bear and feeding mainly on grass, leaves, and roots.
这里的环境特别适于不同种类的植物、有袋动物以及鸟类生存，同时也给那些稀有濒危动植物提供了的生存条件。
This biotope offers a particularly extensive and varied array of plants, as well as marsupials and singing birds, along with other rare and endangered animals and plant species.
考拉大脑和身体的比重是哺乳动物中最小的之一，比它所属的双门齿型有袋动物的平均值小了60%，重量只有19.2克（就一个核桃那么大）。
The koala has one of the smallest brains in proportion to body weight of any mammal, being 60% smaller than that of a typical diprotodont, weighing only 19.2 g.
考拉大脑和身体的比重是哺乳动物中最小的之一，比它所属的双门齿型有袋动物的平均值小了60%，重量只有19.2克（就一个核桃那么大）。
The koala has one of the smallest brains in proportion to body weight of any mammal, being 60% smaller than that of a typical diprotodont, weighing only 19.2 g.
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