Check out the action at a nearby pond where a master predator is on the hunt-a diving beetle! This skillful insect is after larvae, small fish, salamanders, and other prey. Key body parts make a diving beetle an effective hunter. When it spots a target, the beetle's body traps an air bubble, which it uses to breathe underwater for up to 10 to 15 minutes! Its legs act like oars to move it quickly through the water. A smooth, waxy coat helps too. The...