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Like all insects, a bee’s body is divided into three parts: a head with two antennae, a thorax with six legs, and an abdomen. All bees have branched hairs somewhere on their bodies and two pairs of wings. Only female bees have stingers. Many bee species have black and yellow coloration, but many do not—they come in various colors, including green, blue, red, or black. Some are striped, and some even have a metallic sheen. They range in size from large carpenter bees and bumblebees to the tiny Perdita minima bee, which is less than two millimeters long.

There are over 20,000 bee species worldwide, including the honey bee, which originated in Eurasia and has been imported worldwide as a domesticated species. Wild bee species live on every continent except Antarctica. In North America, there are approximately 4,000 native bee species occupying ecosystems from forests to deserts to grasslands. Bees feed exclusively on sugary nectar and protein-rich pollen from flowering plants, unlike the predatory wasps from which they evolved. As they forage, bees perform the critical act of pollination. Bees pollinate a staggering 80 percent of all flowering plants, including approximately 75% percent of the fruits, nuts, and vegetables grown in the United States. Though all female bees can sting, they only do so when threatened.

Unlike the hive-forming domesticated honey bee or wild bumble bee species, most bees are solitary nesters. They don’t form hives, create honey, or live a communal lifestyle. Instead, they lay their eggs in a series of tiny chambers in tunnels in the ground, hollow plant stems, or decaying wood.