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

Parallel lines are indicated by arrows going in the same direction. If there is more than one set of parallel lines in a diagram, different numbers of arrows are used. The three lines in this ...

The crow stared at the screen, as it had many times before. Six shapes appeared. Five were neat, balanced, regular; one was ...

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

Crows are considered to be among the smartest creatures on Earth. They have cognitive abilities at the levels of five- […] ...