It makes us think there is new information or a follow-up question and we spend time opening the thread. Simply click on the Thank button at the bottom left-hand corner of any post you find helpful. I agree with Mike.
Symmetry comes from a Greek word meaning 'to measure together' and is widely used in the study of geometry. Mathematically, symmetry means that one shape becomes exactly like another when you move it in some way: turn, flip or slide.
A selection of animals showing a range of possible symmetries, including both radial and bilateral body plans. Symmetry in biology is the balanced distribution of duplicate body parts or shapes within the body of an organism.