但在加拿大、阿根廷和澳大利亚猪群中发现。
But it has been found in herds in Canada, Argentina and Australia.
今天刚刚宣布发现的，在阿根廷的一种新的恐龙可能给我们一些线索。
The discovery of a new dinosaur from Argentina, announced today, may offer some clues.
该项发现是由位于阿根廷门杜萨的阿根廷冰雪及环境研究院古生物学部的一个科研人员队伍做出的。
The discovery was made by a team of researchers at the Department of Palaeontology at the Argentine Institute of Snow, Ice and Environmental Research in Mendoza, Argentina.
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