Most bugs are useful, but some eat clothes and harm crops and trees. They help to the soil healthy and provide food for birds and fish. Caterpillars can be great at disguise, the can keep absolutely still and pretend to be a twig. Some bugs can lift more times than 300 times their weight. A firefly has a special organ under it to allow it to make light.
Tips Keep still and look closely.
Get a bug book at the library. To catch cover with a jar or clear plastic bottle, then slide a piece of paper, or cardboard underneath, then turn upright. Be gentle, don't hurt them. Help them to feel at home, give them air, grass, leaves etc. Keep the bottle away from heat.