The crayfish 's closest genetic relative can grow to almost lobster-size .
这种螯虾基因上最邻近的物种几乎可以长到龙虾的大小。
Barbicambarus simmonsi is almost twice the size of a typical crayfish found in the southeastern united states .
在美国东南部发现的barbicambarussimmonsi,其体型几乎有当地普通螯虾的两倍大。
Barbicambarus simmonsi is nearly 5 inches long-almost twice the size of a typical crayfish found in the region .
barbicambarussimmonsi差不多有5英寸长几乎是当地螯虾典型身长的两倍。
Scientists working there have found a new species of crayfish that is meatier than all of its competitors .
在这里工作的科学家们已经发现一些螯虾新种,它们比所有的竞争对手都更加多肉。
The north american signal crayfish , introduced to the uk , is regarded as one of the most destructive " alien " species .
英国引进北美洲通讯螯虾后,它们被视为最具破坏力的“外来”物种之一。
There are fresh strawberries , fresh eggs , fresh shrimp and crayfish , either fresh or boiled . Other families are selling heifers , chicks and rabbits .
这里有新鲜的草莓、鸡蛋、淡水虾、或新鲜或水煮的小龙虾,还有家养母牛、小鸡和兔子。
His team began by dissecting small prey like minnows and crayfish , and identified the most prevalent molecules in different regions of their anatomy . Then they synthesised these compounds in the lab and tested them to see which elicited the strongest response from predator fish .