昆虫の進化、分類、生育、行動、生態、ほかの昆虫や動植物との関係性など、驚くべき昆虫の世界を案内します。昆虫は文明の根幹であり、昆虫無くしてヒトが存在することはあり得なかったことを説明します。害虫のように厄介な種もいますが、植物の受粉を媒介することで生態系を支える種もあります。取るに足らないものとみなされることの少なくない生き物ですが、気候変動や殺虫剤の脅威にさらされている昆虫について知ることは、いまだかつてなく重要になっています。
 

• Introduces the extraordinarily diverse and beautiful world of insects
• Highlights the crucial role insects play in ecosystems across the world
• Discusses insect evolution, taxonomies, and behaviour
• Considers the challenges facing insects, leading to alarming trends of decline in numbers, and explores potential solutions

    
To date, more than a million insect species have been described, with probably at least another 5-8 million species waiting in the wings for a name. Insects are a fascinatingly diverse and beautiful spectrum of animals. They range in size from the tiny parasitic wasp, measuring a mere 139µm, to the aptly named Titan beetle, which can reach lengths of up to 17cm. They can be found on all continents of the world, from the Sahara Desert to the frozen wastes of Antarctica; in caves, under the ground, inside plants, other insects and vertebrates, in rivers, streams, lakes and ponds, in puddles, in the watery interiors of pitcher plants; and in our houses. While no insects live beneath the waves, the intrepid sea skaters skim the surface of some of the world's oceans.
    
This Very Short Introduction explores the extraordinary world of insects. It analyses insect evolution, taxonomy and development, and describes their behaviour, their life styles, and the interactions they have with other insects and other animals. As Simon Leather shows, insects are the bedrock on which human civilisation rests; without them we would almost certainly not exist. Although they can be seen as pests of our crops plants, they are also invaluable for pollinating our flowering plants and are an invaluable link in all land ecosystems. As they face challenges from climate change and pesticides it has never been more important to understand these oft-dismissed creatures.