也称为史前穴居人饮食，旧石器时代的营养饮食计划是以约250万年前的人类物种饮食为基础的：包括鱼类，动物，植物。
Also called the caveman diet, the Paleolithic diet is a nurtritional plan based on what human species ate about 2.5 million years ago: fish, animals, plants.
因为没有足够的鱼钩来诱捕，某些鱼就逃过一劫，这会导致对以往鱼类资源存量的低估，再者，在早期的延绳钓时代，许多已经勾住的鱼会落入鲨鱼的口中。
Furthermore, in the early days of longline fishing, a lot of fish were lost to sharks after they had been hooked. That is no longer a problem, because there are fewer sharks around now.
他亲历了儿童时代的河流一步步被污染，鱼类一点点的消失。
He has seen the pristine river of his childhood become polluted and fish populations disappear.
白鲟鱼，一种自恐龙时代就存在的鱼类，现在已经失去了它们在密苏里河沿岸的大部分栖息地了。
The pallid sturgeon, one of a group of fish that has endured since dinosaur times, has now lost much of its habitat along the Missouri River.
在这个各大环保组织不断提醒人们警惕过度捕捞的时代，有一个保护组织却鼓励渔民将一种鱼类赶尽杀绝，这真的非比寻常。
At a time when environmental groups are warning about over-fishing, it's unusual for a conservation group to encourage fishers to decimate a species.
在这个各大环保组织不断提醒人们警惕过度捕捞的时代，有一个保护组织却鼓励渔民将一种鱼类赶尽杀绝，这真的非比寻常。
At a time when environmental groups are warning about over-fishing, it's unusual for a conservation group to encourage fishers to decimate a species.
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