Helpful and Harmful Insects World of Insects. Este artículo no está disponible.Helpful and Harmful Insects World of Insects

Insects have lived on Earth for more than 30 million years! Although some insects are considered pests, children will be surprised to discover just how important all insects are to the other living things on Earth, including people! Easy-to-understand text and vivid photographs help children discover: the roles insects play in pollination; how insects make honey, beeswax, and other products that people use; the importance of insects to other animals; which insects bite, sting, and spread diseases; and how certain insects can damage trees, buildings, and crops.

Explains the benefits of such insects as butterflies and bumblebees in producing silk or honey, as well as the harm other insects cause in destroying plants and spreading disease.