2016-04-24 2016/04/24 ■Scientists just discovered a hidden coral reef in the Amazon river and it's hugeアマゾン川河口に600マイル以上も続く巨大なサンゴ礁を発見 http://www.independent.co.uk/news/world/americas/coral-reef-discovered-amazon-river-brazil-a6998356.html