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

W hen most people think of shapes, they imagine a triangle, a rectangle, or maybe even a fancier- sounding rhombus or trapezoid. But to mathematicians, shapes encompass a vast universe of surprising ...

Scientists tested crows on their ability to recognize “geometric regularity,” a skill previously assumed to be unique to humans ...

Crows in a lab were able to distinguish shapes that exhibited right angles, parallel lines, and symmetry, suggesting that, ...