大脚

For decades, large, hairy, manlike beasts called Bigfoot have occasionally been reported by eyewitnesses across America. Despite the thousands of Bigfoot that must exist for a breeding population, not a single body has been found. Not one has been killed by a hunter, struck dead by a speeding car, or even died of natural causes. In the absence of hard evidence like teeth or bones, support comes down to eyewitness sightings and ambiguous photos and films. Since it is logically impossible to prove a universal negative, science will never be able to prove that creatures like Bigfoot and the Loch Ness monster do not exist, and it is possible that these mysterious beasts lurk far from prying eyes.

几十年当中，美国各地都不时有目击者声称自己看到了人称“大脚”的巨型多毛人形野兽。尽管目击者口中的“大脚”数以千计、足以构成一个繁殖种群，人们却连一具尸体也未曾找到。没有一个“大脚”被猎人杀死或是被超速的汽车撞死，连自然死亡的都没有。没有牙齿骨骼之类的实在证物，“大脚”存在的依据只是证人目击以及模糊不清的照片和录像。要证明一个全称否定判断从逻辑上说是不可能的，因此科学将永远不能证明“大脚”和尼斯湖怪兽之类的东西不存在。也有可能，这些神秘莫测的生物的确潜藏在人们好奇视线之外的远处。