Rats may be frightening and dirty animals to most people,but these small animals change withtheir environment surprisingly well.This means that rats can live almost anywhere on earth.A rat can easily go through a three-centimetre hole.They can climb

Rats may be frightening and dirty animals to most people,but these small animals change withtheir environment surprisingly well.This means that rats can live almost anywhere on earth.A rat can easily go through a three-centimetre hole.They can climb
Rats may be frightening and dirty animals to most people,but these small animals change with
their environment surprisingly well.This means that rats can live almost anywhere on earth.
A rat can easily go through a three-centimetre hole.They can climb up almost any wall.They can dig through the earth and swim almost two kilometers!
Rats have been known to live for three days swimming in water,and they can fall more than 15 metres without getting hurt.They can also jump as high as one metre.
For food,rats in the city eat mostly garbage.However,in the country,rats have been known at times to eat crops,chickens,ducks,and even young pigs.
Rats can also make baby rats very quickly.One male rat and one female rat can make 15,000 more rats in one year through their babies and their babies’ babies!That is one reason why it is difficult to wipe out all of the rats in one place.Any poison(毒) that may kill rats at first will not kill the rats born later.In fact,nature will make the new rats able to live even if they eat the poison.

Rats may be frightening and dirty animals to most people,but these small animals change withtheir environment surprisingly well.This means that rats can live almost anywhere on earth.A rat can easily go through a three-centimetre hole.They can climb
对大多数人来说,老鼠可能是可怕的,肮脏的动物,但这些小动物适应环境变化出奇的好.这意味着可以生活在地球上几乎任何地方.小鼠能轻易地穿过直径有3厘米的洞.它们几乎可以爬到任何墙上.他们可以挖穿地球,游泳几乎能游2公里!小鼠有被认为在水中游泳能活三天,而且他们可以从超过15米高出落下,而没有受到伤害.他们也可以跳跃高达一米.对于食品,城市里的老鼠吃的是垃圾.然而,在这个国,老鼠有时会吃农作物,鸡,鸭,甚至小猪.老鼠的育种也很快.在一年的时间里,一个雄性老鼠和一个雌性老鼠,再加上它们的后代和后代的后代能繁育超过15000个老鼠!这就是为什么在一个地方难以除尽所有的老鼠.任何鼠药可以杀死上一代老鼠但不能杀死后一代的老鼠.事实上,自然选择会使新的老鼠能生存下来,即使让他们吃的是毒药.