犬类

Canines have been used for decades to sniff out drugs, bombs, corpses and even cancer.犬类数十年来一直被用于检测毒品、炸弹、尸体，甚至癌症。Now, a team of British researches are hoping dogs' keen sense of smell can h

导读:我们可能常常困惑于一些现象：比如体格小的萌犬将温顺的大犬吓得屁滚尿流。殊不知，这是狗界的常态！Whenever you go for a walk in the park, you see dog walkers being dragged in all directions by their charges. Sometimes y