What do adult fleas feed on?

Adult fleas primarily feed on the blood of warm-blooded animals, which is essential for their survival and reproduction. Fleas are parasitic insects that have adapted to living on the host animals, such as dogs, cats, and humans. The female flea requires a blood meal to produce eggs, and this feeding process can lead to significant irritation for the host, as well as potential transmission of diseases.

Other options, while they pertain to various niches within the ecosystem, do not accurately describe the dietary habits of adult fleas. Pollen and plant juices are consumed by other insects, particularly those involved in pollination or feeding on plant material, while decaying organic matter is a food source for decomposers, such as certain beetles and bacteria, rather than fleas. Understanding these feeding habits is crucial for pest control strategies targeting flea populations.