Although animals have never evolved wheels for locomotion (see Rotating locomotion in living systems), a small number of animals will move at times by rolling their whole body. Rolling animals can be divided into those that roll under the force of gravity or wind and those that roll using their own power.
Read more about this topic: Terrestrial Locomotion
Famous quotes containing the word rolling:
“The Concord had rarely been a river, or rivus, but barely fluvius, or between fluvius and lacus. This Merrimack was neither rivus nor fluvius nor lacus, but rather amnis here, a gently swelling and stately rolling flood approaching the sea. We could even sympathize with its buoyant tied, going to seek its fortune in the ocean, and anticipating the time when “being received within the plain of its freer water,” it should “beat the shore for banks.””
—Henry David Thoreau (1817–1862)
“But dread
was in her, a bloodbeat, it was against the rolling dark
oncoming river she raised bulwarks....”
—Denise Levertov (b. 1923)
“Lift every voice and sing till earth and heaven ring,
ring with the harmonies of liberty.
Let our rejoicing rise high as the listening skies;
Let it resound loud as the rolling sea.”
—James Weldon Johnson (1871–1938)