Roella incurva invaded

The visiting hairy insects in the cup of this Roella incurva flower are well covered in pollen. This hairiness may have evolved from pollinating flowers better. Better pollinated flowers may have survived better, feeding their insect partners better. Better fed insects survived better to serve their flower partners.

Evolution favours functional symbiotic arrangements. So plant and insect may co-evolve when they fulfil survival needs mutually. Nature does not have a mainframe computer-like brain to work out such contracts. Those specimens on both sides of the bargain that meet partner requirements, survive better statistically.

Evolution is a roulette of millions of failures ending in early death, combined with many successes of survivors that reproduced. Humanity exhibits recurring urges of ascribing higher order intentionality to this natural process (Manning, 2007; Bond and Goldblatt, 1984; iNaturalist).