This bumble bee is starting the pollination process without even realizing it! When bees land on a flower, like this milkweed flower, their feet often slip into a little groove that holds pollen sacs. When the bee flies away it carries off this sac like a saddlebag stuck on its feet. When this bee lands on another flower looking for nectar, the "saddlebag" falls off, the pollen falls out of the sac, and pollination is underway.