Flea

Fleas primarily live on the bodies of their hosts (e.g., cats, dogs, rodents, birds). However, their eggs, larvae, and pupae are often found in the host's environment, such as carpeting, bedding, cracks in floors, and soil outdoors.

Adult fleas are external parasites that feed on the blood of mammals and birds. Larval fleas feed on organic debris, including adult flea feces that contain undigested blood.

They are typically slow-moving and not particularly agile. Fleas are amazing jumpers, capable of jumping vertically up to 7 inches and horizontally up to 13 inches, making them the best jumpers in the insect world relative to their size. They achieve this by storing energy in a protein called resilin. Their life cycle includes egg, larva, pupa, and adult stages, with adults typically living for several months if they can find a host and feed regularly.

Risks: Fleas can cause intense itching, skin irritation, and allergic reactions (flea allergy dermatitis) in pets and humans. They can also transmit diseases, such as Bartonellosis (cat scratch disease), murine typhus, and serve as intermediate hosts for parasites like tapeworms (Dipylidium caninum). Benefits: In most ecosystems, fleas are considered parasitic pests, and their benefits are minimal. They can serve as a food source for some predatory insects or mites, but their negative impacts on hosts and potential disease transmission far outweigh any ecological benefits.