• 有袋动物的胚胎发育与其它脊椎动物不同

    10-11-30 Long a staple(主要的,常用的) of nature documentaries, the somewhat bizarre(奇异的) development of a grub-like pink marsupial(有袋的) embryo outside the mother's womb is curious in another way. Duke University researchers have found that the d...

  • 古化石洞穴显示有袋类动物的生活方式

    10-07-16 The discovery of a remarkable 15-million-year-old Australian fossil limestone cave(石灰岩洞) packed with even older animal bones has revealed almost the entire life cycle of a large prehistoric(史前的,陈旧的) marsupial(有袋类动物) , from suck...

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