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

A new study shows that like humans, crows can recognize geometric regularity, making them the first nonhuman animal known to ...

You would call this the line of symmetry. Module 1 (M1) - Geometry & measures - Two dimensional (2D) shapes All 2-D shapes are flat. They can have any number of sides that meet up with no gaps.

Squares, triangles, circles - these geometric shapes appear everywhere in art and architecture going back all through human history. Geometric regularity seems to be something that the human brain ...