Most of North America's 3,500 species of bees go unnoticed, primarily because people expect all bees— apart from the big, conspicuous bumblebees and carpenter bees—to resemble the familiar honeybee. In fact, many are smaller, looking more like wasps, fuzzy flies, or flying ants than honeybees. Their behavior, more than their appearance, is what gives them away: if you see an insect on a flower deliberately packing pollen onto its hind legs or under its abdomen, it's bound to be a bee.
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