When a fungus began killing their larvae, colonies of buff-tailed bumblebees did something quietly remarkable: they began seeking out flowers rich in a natural antimicrobial compound, not for themselves, but apparently for the young they tend. Researchers in Spain and Belgium, publishing in Royal Society Open Science, documented this shift over five days using robotic flowers — finding that neither healthy colonies nor those infected with a different, adult-targeting pathogen changed their foraging in the same way. The discovery extends the ancient human intuition that living things know, in s