jar containing the parasites from kangaroo’s stomach

adaptation agent amoebic animal arthropods ascarid australia bacteria biology cnidaria colon detriment digestive disease dysentery entomology evolution fauna flatworm fungi harm helminth host human illness infection intestine kangaroo malaria medicine micropredation nematodes organism parasite parasitism parasitoidism parasitology pathology predator protozoan research roundworm science sickness species stomach tapeworm transmission worm zoology