Dog Flea:

The dog flea (Ctenocephalides canis) is a small, reddish-brown, wingless parasite that feeds on the blood of dogs and other mammals. Measuring 1–4 mm long with a flattened body, it can easily move through fur and jump long distances using its strong hind legs. Eggs are laid on the host but drop into carpets, bedding, and outdoor resting spots, where they hatch into larvae. The life cycle—egg, larva, pupa, adult—can be completed in as little as two weeks under warm, humid conditions, though pupae may remain dormant for months. Infestations cause itching, skin irritation, and can transmit tapeworms (Dipylidium caninum) and bacterial diseases. Fleas can bite humans, but cannot survive long on them. Control requires treating pets, indoor environments, and outdoor areas to break the life cycle and prevent reinfestation.