Wise eyes

 作者:檀牧卿     |      日期:2019-03-08 01:08:00
OWLS can see the same optical illusions that we do, despite the fact that their binocular vision evolved independently of ours, say biologists in Germany. Andreas Nieder and Hermann Wagner at the Institute of Biology of the Technical University in Aachen trained barn owls to tell the difference between white squares and triangles on a black background. The researchers then showed the owls squares and triangles that had illusory boundaries, similar to that seen between two pieces of stripy wallpaper that are slightly misaligned. The birds were still able to tell the shapes apart (Nature Neuroscience, vol 2,