Behavioural pattern
Behavioural pattern describes an animal’s dominant way of life. Arboreal animals, for example, live in trees and nocturnal animals are active at night.
Parasitic
Parasitic organisms have a close relationship with another organism, which they use ultimately to extract food. The process generally harms the host, and may even kill it. Parasites can either live on the surface of the host – like blood sucking fleas – or inside it like tapeworms. There are examples of parasites in both the plant and animal kingdoms and some fairly gruesome fun