Crows might appear like they only screech and steal food, but scientists recently discovered a complex side of these clever birds. Like us, they recognise unfamiliar shapes. German researchers found ...

Researchers at the University of Tubingen have demonstrated that carrion crows can detect geometric regularity in shapes and can distinguish between different geometric forms, opening up a new window ...

Two-dimensional (2D) shapes are completely flat. They cannot be picked up. A polygon is a 2D shape with straight sides that meet at vertices. Polygons have names that show the number of sides they ...