attracting the attention of others. 很容易引起其它动物的注意
The bigeyes are the equivalent of bats. 大眼鲷相当于蝙蝠
they are most vulnerable at the scheduled time of departure. 它们在出发阶段最容易遭受攻击
vast shoals of demoiselle fish return to the caves, 大群雀鲷返回到洞窟中
so most sea caves are created by the mechanical pounding of the waves. 所以大部分海洋洞窟 是在海浪的机械冲击下形成的
The rocky outcrops of New Zealand's Poor Knight Islands are riddled with sea caves 新西兰坡·骑士岛的 岩礁下布满了海蚀洞
The Maya understood the importance of the cenotes, 玛雅人知道沼穴的重要性
but they could never have known that these flooded passageways were actually the beginning of subterranean rivers, 但他们从不知道这些水下通道 其实是地下河的入口
all of which eventually flow out to the sea. 它们最终都流向大海
like the remiped, one of the most ancient of all living crustaceans. 例如桨足虫——一种最古老的甲壳动物