同一地区另一个著名的坟场是个叫做惠灵顿洞穴的地方，人们在那里第一次发现了双门齿兽——目前已知的最大的有袋类动物。
Another famous boneyard in the same region is a place called Wellington Caves, where Diprotodon, the largest known marsupial, was first discovered.
2007年一位农民警觉地告诉科学家，在澳大利亚维多利亚一条干涸的河床上有重大发现：多个保存完好的双门齿兽的足迹。
On a drying lake bed in Victoria, a farmer in 2007 alerted scientists to a major find: well-preserved tracks of a Diprotodon.
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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