我们的故事的前半段,发生在古生代泥盆纪的大海里。那时,陆地上一片荒凉,海洋里却热闹得很。生命从海洋里孕育出来,又在海洋里蓬勃生长,如火如荼,好不兴旺。海底像个大花园。各种各样的珊瑚,有的如同一棵小树,有的像盛开的花朵,有的长成一个花坛模样,红黄蓝白,拼成各式图案。海百合腰肢婀娜,随着海水摇摆;各类水藻,粗大茁壮,像蛇一样飘动着。看见那鹦鹉螺吗?叫做直角石的像一个个蛋卷冰激凌,只是细长些;叫做弓角石的像牛角,只是小得多。它们的圆口上都长了很 The first half of our story took place in the Paleozoic Devonian sea. At that time, desolate land, the sea was very lively. Life is bred from the sea and thrived in the sea again, in full swing. Sea like a big garden. A variety of corals, some as a small tree, and some like flowers in full bloom, and some grow into a flower bed appearance, red, yellow, blue and white, spell into all kinds of patterns. Sea Lily waist and graceful, with the sea swing; all kinds of algae, thick and throat, like a snake fluttering. See that nautilus? Is called a rectangular stone ice cream like an egg, just slender; called horns called horns, but much smaller. Their round mouth are long