Why are most of the animals we see symmetrical in appearances (e.g. humans have left-right symmetry) but not plants and trees?

Question

Why are most of the animals we see symmetrical in appearances (e.g. humans have left-right symmetry) but not plants and trees?

In: 8

Answer 1

Just want to add a cool bit here. Not all symmetry is bilateral. Some things have radial symmetry, like sea stars.