In desperate circumstances , pigeons were greatly valued as a last-ditch option for sending vital messages .
在隔离的状态下,鸽子作为传送重要信息的最后可行选择,具有无可估量的价值。
Many species , ranging from pigeons to monkeys , have shown that they can make or learn lists .
许多物种(从鸽子到猴子)都显示出它们具有排列的能力或者学习排列的能力。
Pigeons were once briefly used to carry stock market price reports between paris and berlin in the early beginnings of the reuters news agency .
在路透社的通讯社刚成立的时候,鸽子曾一度被用来传送巴黎和柏林之间的股票价格报道。
The days when pesky pigeons distracted players and even interrupted play are gone , thanks to rufus the harris hawk .
多亏了老鹰rufusharris的帮助,恼人的鸽子再也无法干扰球员,干扰比赛了。
During world war I and ww ii , the u. s.military enlisted more than 2 00000 pigeons to conduct surveillance and relay messages .
在第一次世界大战和第二次世界大战期间,美军征募了超过20万只鸽子用于实施监测和转达信息。
To a psychologist , lots of human rituals look a lot like the automatic behaviours developed by skinner 's pigeons or dickinson 's rats .
对于一位心理学家而言,很多人类惯例看起来都特别像斯金纳的鸽子或者迪金森的老鼠所做出的不自觉行为。
Scientists set up an avian casino in which pigeons could place their bets on one of two symbols .
科学家们设置了一个鸟类的“卡西诺赌场”,在那里放上两个标志以供鸽子下赌注。
The pigeons were shown a series of three images , each with one , two or three different objects in it .
这些鸽子会看到一组一组的三个图形,每次有一个、二个或三个不同的物体。
The pigeons flew hundreds of miles , averaging speeds of a mile a minute , with messages strapped to their legs in tiny capsules .
鸽子飞行数百英里,平均速度每分钟一英里,信息就放在小胶囊里绑在它们的腿上。
An italian program used 50000 pigeons , reporting that one pigeon message had helped to save 1800 italians and led to the capture of 3500 australians .