Spherical symmetry refers to any spherical object that can be divided through the center and produce two equal halves. This differs from the two-dimensional symmetry found when a circle is cut through the middle.
While spherical symmetry typically involves man-made structures and geometric shapes, there are some examples that occur in nature. These examples typically include small organisms, such as Volvox, a form of freshwater alga. Spherical symmetry also depends on color patterns and other properties. While the earth is in the shape of a sphere, it would only be symmetrical if all the atmospheres, land structures and colors were symmetrical.