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

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

In a remarkable new study, crows demonstrated an intuitive grasp of geometry—identifying irregular shapes without training.

Crows in a lab were able to distinguish shapes that exhibited right angles, parallel lines, and symmetry, suggesting that, like humans, they have a special ability to perceive geometric regularity.