Scientific name: Coleoptera (order)
Identification: Water beetles are classified as any beetle that has part of its life stage within an aquatic system. In their larval stages, water beetles are soft-bodied and thin, with filaments coming off of the main abdomen. In their adult stage, these beetles have hard exoskeletons that protect most of their body cavity.
Habitat: Water beetles are some of the most abundant species, populating areas around the world in varying environments. They generally prefer slow moving streams with vegetation and can survive in poorly oxygenated waters.
Overview: Water beetle larvae and adults both have strong mandibles, which they use to feed on a variety of diets. They are voracious predators and will attack organisms much bigger than they are, using digestive enzymes to stun and kill their prey.