They then found the same virus lurking in the genome of the three-toed sloth.
然后他们在三趾树懒的基因组中发现了同样的病毒。
Emu is a large Australian flightless bird, similar to the ostrich but with three-toed feet and grey or brown plumage.
鸸鹋是一种大型的澳大利亚不会飞的鸟，类似于鸵鸟，但是有三趾的脚和灰色或棕色的羽毛。
The three-toed sloth sleeps 9.6 hours nightly.
三趾树懒每天要睡9.6小时。
Any of various extinct ungulate mammals of the Eocene to Pleistocene epochs, having distinctive three-clawed, three-toed feet.
一种已灭绝的始新世和更新世的有蹄哺乳动物，其特征为有三爪，每爪有三趾。
Any of various extinct ungulate mammals of the Eocene to Pleistocene epochs, having distinctive three-clawed, three-toed feet.
一种已灭绝的始新世和更新世的有蹄哺乳动物，其特征为有三爪，每爪有三趾。
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