Praying mantises do not need 3D glasses to see in 3D, because they do so naturally. However, scientists put miniature 3D glasses on praying mantises in order to further study the way they see the world. They only see in black and white, but their 3D vision might help scientists improve the 3D depth perception of computers.



Preying mantises wearing tiny glasses confirm insects see in 3D

When it’s behind the black and white shapes, the mantis leaves it alone, but the insects watch carefully and when the shaped flutters in front, the mantis strikes. The mantises do not try to catch the bugs when they are shown in 2D, but as soon as they …

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