1·The rivers feed into the Bering Sea and Gulf of Alaska — cold, nutrient-rich waters which support tens of millions of seabirds, and over 400 species of fish, shellfish, crustaceans, and mollusks.
这些河流汇入白令海和阿拉斯加湾这片寒冷而又营养丰富的水域，在这片水域里生活着数千万只海鸟、400多种鱼类、贝类、甲壳类和软体动物。
2·This hypothesis groups annelids with mollusks and brachiopods in another superphylum, Lophotrochozoa.
该假说将圆环类动物与软体动物和腕足动物归为另一类，冠轮动物。
3·The lionfish gorge on small fish, mollusks and invertebrates, enough to fill out to as much as 480 grams and decimate local populations on the coral reefs they inhabit.
狮子鱼以小的鱼类，软体动物和无脊椎动物为食，足够将身体填至高达480克，在他们所居住的珊瑚礁大量杀死本地物种。
4·Rare and reclusive, these mollusks spend most of their lives hiding under rocks in the cracks and crevices of reefs in the South Pacific.
这些软体动物是非常珍稀和隐蔽的，它们大多在南太平洋的岩石裂缝中度过其大部分的寿命。
5·Most of the fossils seen in Paleozoic rocks are invertebrate animals lacking backbones, such as corals, mollusks and trilobites.
大部分在古生代岩层中发现的化石都是没有脊骨的无脊椎动物，例如珊瑚、软体动物和三叶虫。