crayfish

Earthworms, crayfish and tadpoles are examples..蚯蚓、小龙虾和蝌蚪都是实例。

Some of Britain's most endangered wildlife - from red squirrels to native crayfish - are vanishing from the countryside at an alarming rate, a report warns..英国的一项报告表明该国大多数濒临灭绝的野生物种——从红松鼠到当地小龙虾——正在以惊人的速度消失。

A huge variety of fish, including cod, crayfish, bream, halibut, mussels, salmon, sea bass and sturgeon, are all farmed, providing jobs and food for people all over the world..非常多的鱼类已被养殖，包括鳕鱼、小龙虾、鲤科鱼、大比目鱼、贻贝、鲑鱼、黑鲈和鲟鱼，为世界各地的人们提供了食物和工作岗位。