正在加载视频...
视频加载失败
Geologists studying massive chevron formations found something wind alone couldn’t explain: marine microfossils buried in the sand. Here’s the clue—these tiny shells show one smooth side and one side pitted by sandblasting. That means they were likely swept in by a tsunami, then weathered by wind over time. Nature... show more
0 条评论
暂无评论
原始帖子的评论将显示在这里

