Common lilac
Flowering plant
Widely naturalised
As an evolutionary visual signal of an abundance of nectar, perhaps pollinators are innately attracted to flowers based on beauty. In such a circumstance, aesthetic pleasure encourages activity independent of any cognitized immediate result. Basic instinct and environmental conditioning affect the possibility of free will.
“The lilac branches are bowed under the weight of the flowers: blooming is hard, and the most important thing is – to bloom.” – Yevgeny Zamyatin