The leaf of Rubus ursinus (the California black berry) is a prime example of bilateral symmetry.
Bilateral symmetry in nature is when an organisms exhibits a design or shape that can be intersected with a single line and be symmetrical. Examples of this are the wings of a butterfly, the face of a spider, avocado tree leaves, the human body, etc. About 99% of animals are bilaterally symmetric in some way.
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