fleas ticks worms mosquitoes... ----
Dry parasites
All animals potentially carry parasites.
Roundworms can also be parasites to humans.
Human and animals
Dogs are not parasites because parasites suck the blood of other animals. Dogs are hosts to various parasites, such as ticks and fleas.
Worms, fleas, ticks and other parasites
Parasites
by killing them
Parasites.
Human and animals
Parasites are animals that live inside other animals.
Ectoparasites are external parasites. Lice or fleas are examples.