In geometry, an n-sided prism is a polyhedron made of an n-sided polygonal base, a translated copy, and n faces joining corresponding sides. Thus these joining faces are parallelograms. All cross ...

It had previously been believed that epithelial cells were "prism-shaped" or "truncated pyramids." But researchers at the University of Seville discovered that their form is more complex than that.

Our world is made up of elegant shapes — there's the square, the rectangle, the sphere, the prism and many more. But sometimes, these shapes don't quite fit nature's game board.