The fossilized remains of the ostrich-like ornithomimids are rare evidence of social behavior, say scientists from Montana State University and elsewhere.

蒙大拿州立大学的科学家认为这是罕见的似鸟龙——长得像鸵鸟——社会行为的证据。

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The fossilized remains of the ostrich-like ornithomimids are rare evidence of social behavior, say scientists from Montana State University and elsewhere.

蒙大拿州立大学的科学家认为这是罕见的似鸟龙——长得像鸵鸟——社会行为的证据。

youdao