This could only be explained by a mega-flood from lake agassiz .
这可能只能用来自阿加西湖的一次特大洪水来解释。
All he heard from agassiz each day was a friendly " good morning . "
每天他从阿加西那里听到的,只是一句礼貌的“早上好”。
Dr bateman and his team confirmed the path of the floodwaters from lake agassiz that covered part of what is now canada and the northern united states .
Theories range from the extinction of the mammoth to sudden environmental changes caused by a comet impacting or earth or the break of a massive freshwater lake , lake agassiz .