How were those close-up photos of butterflies, bees and other insects taken? How do photographers avoid disturbing them?

There are many doorways here. Look at the object first. Take the butterfly as an example. If the butterfly has just emerged, it basically has no flying ability at this time, so it can be photographed very close. Another example is that butterflies are absorbing water, so they will be more "focused" and easy to approach. For example, a butterfly is basking in the sun. If you are closer, you may be closer. Butterflies are difficult to get close to among insects. Even if others have the ability to fly, personal experience shows that as long as you don't move much, you can get closer when you get closer. Many beetles generally don't move. . . On the subject, a telephoto lens can be used to shoot a clear picture from a distance. Of course, the macro lens for bug shooting is suitable, so it needs to be closer.