捷进英语b2u2

e moon and the sun to help remember where they are, where they have been and where they are going. While humans might remember short journeys such as their way around a city, it is quite another step to travel to somewhere over 10,000 miles away with nothing but yourself!Р译文Р没有人充分了解动物是如何找到迁徙目的地的。但研究正显示,动物的大脑和人的大脑都有类似全球定位系统的东西。动物可以利用地标、星辰、月亮和太阳等任何东西帮它们记住自己现在在哪里,曾经去过哪里,以及将要去哪里。虽然人们可能会记住一些较短的路途,例如所在城市周围的路线,但是仅靠自己不借助任何帮助就踏上一个?一万多英里的旅途,就是另一回事了。РMore InformationРSome turtles can travel 12,000 miles back to the beach where they were born to have their own young turtles. РSalmon “smell” the water to return from the sea to a river. РMany birds, butterflies and crabs use the Earth like a giant to find their way.Р译文Р一些海龟可以迁徙12,000 英里,回到它们出生的那片海滩来繁衍后代。Р大马哈鱼靠闻海水的气味从大海回到河流。Р很多鸟类、蝴蝶和蟹类都把地球当成一个巨型磁铁来寻找方向。