By timing their visits to twilight, just as nocturnal flowers are opening, some bees can grab most of Pseudobombax longiflorum's pollen.
You can read the post at: https://www.botany.one/2021/12/when-foraging-for-pollen-from-flowers-timing-can-be-crucial/
You can read the original research at: https://doi.org/10.1093/biolinnean/blab137
