Parasites are organisms which take nutrition from other living things. Discover the life cycle of parasites, from tapeworms to cuckoos.
- Parasites live on, or inside, another species and gain nourishment from them.
- Parasites have complex lifecycles, using host species in order to gain entry to another, e.g. the malaria parasite uses the mosquito to travel between human hosts.
- Parasites can affect the health and behavior of their hosts.
- Parasites must tread a careful balance - taking the nourishment they need without killing their hosts.
In every ecosystem, there are parasites, organisms that live on or inside another species, causing them harm.
Gain nourishment from another species
Some parasites live on the surface of their host - like head lice that live and feed on the scalp.
And fleas that feed by sucking blood.
Others live inside their ...
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