Polygons are 2D shapes that have straight sides. Regular polygons have sides and angles that are all the same size. Let's recap what a polygon is with this quick video. How would you work out the ...

Crows can recognize geometric patterns, suggesting that humans aren't unique in understanding shape structure.

Other critters might have an inherent sense of geometry ... regular shapes," explains Nieder. Yes. It turns out, the crows could. In the journal Science Advances, the researchers describe a series of ...