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lockdown – n. restrictions ordered as part of security measures
outbreak – n. a sudden start or increase of fighting or disease
breed – v. to keep and take care of animals or plants in order to produce more animals or plants
domestic – adj. existing inside a country; relating to a home or family members
conservation – n. prevention of wasteful use; protection of wildlife or the natural environment
mammal – n. a warm-blooded animal that drinks milk produced by its mother
nest – n. a place chosen by an animal for sheltering its young
boar – n. a kind of wild pig (also a kind of male pig)
messy – adj. not clean; very unpleasant and complex
