Birds do it, bees do it — but we don’t. See exceptionally well, that is. When bees look at a flower, they see it almost as a neon sign pointing “This way to the nectar!” The petals that look so pretty to us are dark to a bee, while the nectar-and-pollen gathering spot at the center is blazingly bright, like a target. Finding food becomes easy. Meantime, birds — well, eagles, anyway — can see mice and other prey from so far away, they can swoop in for the kill before their dinner knows what hit them.