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Earthworms are of interest to most children, are easily accessible and are an animal species easily kept in the classroom for short periods of time. This...

Charles Darwin is well known for his work on natural selection. He published widely on topics ranging from barnacles to geology to plants. He travelled the...

To most of us, one earthworm resembles another. Although earthworms do have common characteristics, species differ widely in their size, skin colour and in the roles...