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Life without insects?

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World of Insects
Life without them
So many of them
    Secrets of their success
    Family tree
    Major insect order
Insect Anatomy

World of Manduca
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Wonderful!

Imagine for a moment, a world without insects... "Wonderful!", you say, "Finally I can explore the great outdoors unbothered by all those nasty creepy-crawlies! Picnics without ants! Apples without worms! Camping without mosquito bites! Paradise! Where do I sign up?"

True bugBefore you get too excited, consider this. Without insects, our world would be a very different place. If insects didn't play their roles as pollinators and as food sources for other animals, our food supply and selection would be drastically reduced. As a result, you might have trouble putting together that "ant-free picnic" you were so looking forward to. Likewise, a pleasant camping spot might be difficult to come by in a world full of animal waste and dead plants and animals that would exist without insects to help break them down. grasshopper

Vital part of this planet's ecology

While it's true that some insects - like those bloodsucking mosquitoes or plant-eating pests - directly harm humans, the vast majority don't. Rather, they're all a vital part of this planet's ecology. They provide food for other animals (including humans in some cultures), recycle natural materials, and help plants to reproduce. butterflyThey even create products we use every day, such as silk and honey. On a scientific level, insects provide systems for exploring and modeling human body processes. So, you see, insects help us to better understand ourselves and the world around us.

At the purely aesthetic level, insects provide our world with beauty, drama, and wonder. They have, it seems, a limitless variety of colors and shapes, behaviors and habits. As you look through a hand lens at an insect, you enter a world more bizarre and outrageous than any science fiction author could dream up. They can be fascinating, entertaining, beautiful, or ugly. They are insects, and they are everywhere.

 

 

Living in a world without insects
Advantages
Disadvantages
  • no more "icky bugs"
  • Agriculture without pesticides*
  • Reduce spread of insect-borne diseases
  • *Without pollinators, crop yields would plummet!
  • Starvation of species that eat insects
  • Collapse of the food chain!
  • We'd be buried in waste!
  • Loss of insect products like silk, honey, etc.
  • A world with less wonder and beauty!

World of Insects

Life without | So many of them | Secrets of their success | Family Tree | Insect orders | Anatomy

 

 


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The University of Arizona
Revised: July 27, 2001


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