>In contrast they respond to the sound of nectar-stealing non-pollinators by cutting back on sugar.
So there is some discrimination in their hearing.
This sounds like a really wild take. Just because something has been evolving for millions of years doesn't necessarily mean it's evolving information processing capabilities. It's patently obvious to me that the information processing capabilities of animals (eg. just vision alone) are far beyond those of plants.
That is true. And look how different we’ve become.
> and so there is likely to be equivalent information processing complexity to be found in them
That’s quite a leap. I think precisely because plants and animals have evolved separately for so you can’t make that assumption. Maybe plants hasn’t not simply because they don’t need to, as a fundamental consequence of their differing physiology.
Sometimes it's just an anatomy mismatch - like very small bee species and big open flowers.
They're true parasites, piercing the flower to drink nectar without any chance of pollination.