Flowers are more devious than they look
This flower, aka Royal Water Lily, attracts its pollinator, the scarab beetle, with an initial white color and a strong scent. The beetle, looking for food, crawls into the flower, which it finds inside the bloom. Then the flower closes, trapping the beetle inside. In about 24 hours, the flower petals turn red, the scent fades, and the beetle is released, to go forth and replenish the earth by cross-pollinating other royal water lilies with the pollen that now covers its body due to the one-day imprisonment.