you're probably familiar with rats because they live pretty much everywhere, but here are five facts you didn't know about our furry rodent friends.
1、number one New York City may have the biggest rat infestation in the world if you haven't seen the hilarious but horrifying videos of New York rats on YouTube,you're gonna want to check them out and one of them a person is asleep on a subway bench while a rat climbs up his leg and onto his lap.
NYC has declared a war on rats and budgeted more than half a million to an anti-rat problem
纽约是世界上老鼠最泛滥成灾的城市，政府每年花费超过50万美元预算在反鼠大战上
2、number two rats can swim up the pipes into your toilet bowl, it's a rare occurrence but a frightening reality in towns with older sewage systems. rats can get lost in the pipes and tread water for days seeking a way out.
if you ever encounter one in your toilet just know that it's very tired from swimming，and probably won't be aggressive but still I mean don't touch that
老鼠会通过管道爬进你家的马桶，如果你碰到这种可怕的现实情况，不要碰它
3、number three there is a rat island off the coast of Alaska and it used to be full of rats。in 1780,a Japanese boat ship wrecked there,and a few rats who were on board quickly overran the native species including some endangered birds like the bald eagle. but in 2010 the US Fish and Wildlife Service eradicated the rats on rat island. so now the name is just ironic and very cool
在Alaska海湾曾经有一个充满了老鼠的岛，1780年，一艘日本船只在这里失事，被老鼠登陆占领取，2010年，美国鱼业和野生动物管理局铲除了岛上的老鼠，但这个名字保存了下来
4、number four a rats front teeth can grow five inches in a year that's why they're always gnawing on things to grind them down，the teeth can grow fast or slow depending on the rats diet and rats don't get cavities because they just get worn away as the teeth grow
老鼠的前排牙齿能在一年内长5英寸，所以他们总是要啃东西磨牙，牙长得快还是慢取决于老鼠的消化能力，老鼠不会长蛀牙，因为当牙齿生长时他们就把它磨损掉了
5、number five scientists say that rats can laugh and they can dream. Dr.Jack Panksepp from Washington State University says that rats emit a high frequency chirp when they play together or when a hand tickles them. and at MIT,scientists say that their lab rats were dreaming of running a maze,they recognized the same brainwave activity in sleeping rats that occurred in wakeful rats that are running a maze.
科学家说老鼠会笑和做梦，华盛顿洲立大学的研究说老鼠们在一起玩或者用手挠痒他们时会发出一种高频的吱唧声，MIT科学家说他们的实验室老鼠会梦见自己在跑迷宫，在清醒状态上正在跑迷宫的老鼠，也能在睡着的老鼠上监测到相同的脑电波。
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