dog ticks and flea under microscope for study in laboratory.

adult animal animals arachnid babesiosis background bite blood body brown bug carriers cat close closeup danger detail disease diseases dog ectoparasite egg ehrlichiosis flea fleas group health hepatozoonosis hook insect isolated laboratory laboratoryn larva legs lyme microscope mite nature nymph parasite parasites parasitic pet protection rhipicephalus ricinus sanguineus seed sickness skin small study suck tick ticks