Alexandra Horowitz: 狗鼻“看”世界 - Alexandra Horowitz

狗鼻“看”世界 - Alexandra Horowitz

观看完整视频：http://ed.ted.com/lessons/how-do-dogs-see-with-their-noses-alexandra-horowitz

你可能听过一句话 ”狗狗用鼻子来看世界”。

A dog's nose reveals a universe far richer than human eyes could ever see. With hundreds of millions of olfactory cells, dogs detect scents at concentrations up to 100 million times lower than humans can. Their sophisticated nasal structure lets them locate where smells come from and even distinguish emotions or illnesses in people. For dogs, every street corner holds the stories of the past, present, and future—written in invisible scent.

Dogs Experience Hidden Worlds Through Their Extraordinary Sense Of Smell

science

animals

psychology

biology

anthropology

consciousness

smell

TED-Ed

animation

TED-Ed Original