Hello,
Before going Through symmetry in animals you must know what is the basic meaning of symmetry ,symmetry refers to figure which divided along a line or plane ,and the two are halves are equal , In nature radial symmetry is found in animals such as sea star or jellyfish . The body pattern radiates outward from a central point.
In most of the moving animals bilateral symmetry is seen here by moving animals we mean earthworm ,butterfly ,dog or human .there are two matching sides that are found on either side of an imaginary line.
Hope you find it informative!