Mobile phone users could soon be answering to the calls of nature. It is said that London's British library has sold 40 sounds from its collection of 100,000 wildlife recordings to two mobile ringtone companies，iTouch and Mobiletone. The recordings can be downloaded from the Internet in September.
移动手机用户可以接听大自然的铃声了。据悉， 伦敦大英图书馆从其收藏的10万种野生动物的声音记录中出售了40种叫声给移动手机铃声服务商iTouch和Mobiletone。这些声音可望于9月从因特网上下载到。