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The Real-World Science Supplement
to Scholastic News.
all of the organisms and nonliving things in an environment and their interactions
Red squirrels and the trees where they live are part of the same ecosystem.
a natural place for the life and growth of an organism
Pine martens live in a forest habitat.
an animal or plant that occurs naturally in a place
Red squirrels are native to the British Isles.
an animal or a plant that moves into an area and does great harm to native species
Gray squirrels are an invasive species in the British Isles. They’re originally from North America.
an extremely small organism that causes a disease
Gray squirrels pass the deadly squirrel pox virus to red squirrels.