This suggests that recognizing geometric shape regularity may be deeply ingrained in evolution, and could be more common in the animal kingdom than we've realized. "We humans – based on our ...

Crows are able to look at a handful of four-sided shapes and correctly distinguish those that exhibit geometric regularity ... they'd have to peck on the shape that was different from the others.

Get Instant Summarized Text (Gist) Crows have demonstrated the ability to recognize geometric regularity, a skill previously observed only in humans. Experiments showed that carrion crows could ...

Here are their edited responses. My favorite shape is the loop, a circle with all geometric information stripped away, leaving only a free-form one-dimensional object. In fact, there’s a sense ...