Learn how starfish got their shape after a complicated evolutionary process, starting with an ancestor that lived 500 million ...

Young children can be given symmetrical shapes (e.g., isosceles triangles and trapezoids, rectangles, rhombuses) to put them together and see whether the combination of two (or more) symmetrical ...

Symmetry tends to dominate; that is, we usually see the shapes defined by mirror-symmetric contours as figure rather than as ground (c). Our brain is choosing symmetry to perceive objects.

A 2D shape is symmetrical if you draw a line through it and it looks exactly the same on either side of the line. Find out more in this Second Level Bitesize guide.

Polygons are multi-sided shapes with different properties. Shapes have symmetrical properties and some can tessellate. Loci and constructions - Edexcel Loci are a set of points with the same ...

Crystals that are perfectly symmetrical around a central point can nevertheless respond to light as if they were asymmetric, ...

To figure out how we pick mates, scientists have measured every shape and angle of the human face, studied the symmetry of dancers, crafted formulas from the measurements of Playboy models, and ...

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.