ARACHNIDS

Arachnids have four pairs of jointed legs, two body sections and simple eyes. Arachnids are aggressive predators and include spiders, scorpions, mites and ticks.

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The Ultimate How Spiders Work Quiz

What is it about spiders that creeps people out so much? Spiders are probably the most feared bug, even though very few are actually dangerous. Perhaps learning more about spiders will help you get over your fears. Take this quiz and find out more about these helpful little creatures.

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  • How long can scorpions live without food or water?
    How long can scorpions live without food or water?

    Scorpions have been around for 450 million years. But the species hasn't been sustained by a healthy, vibrant diet: This opportunistic eater would rather wait for food to come to it than go out hunting for it. So how many meals does that amount to? See more »

  • What are chiggers and how do they bite?
    What are chiggers and how do they bite?

    If you have ever been out in the woods or an open field in spring, summer or fall, you may have gotten chiggers around your waistband or on your ankles. They leave red, itchy bumps on your skin. Learn more about these arachnids. See more »

  • What is a spider's silk made of?
    What is a spider's silk made of?

    Spider silk is five times stronger than steel and twice as strong as bullet-proof Kevlar. What exactly is spider silk, what is it made of and why is it so strong? Find out the answers to these questions and learn other facts about spider silk. See more »

  • What's the world's deadliest spider?
    What's the world's deadliest spider?

    If looks could kill, bristly tarantulas would be the spiders to watch out for. But violins and hourglasses are far more cause for concern. See more »

  • Arachnids
    Arachnids

    Arachnid, a general name for any animal that belongs to the class Arachnida. Arachnids include spiders, scorpions, harvestmen (or daddy longlegs), mites, and ticks. See more »

  • Chigger
    Chigger

    Chigger, the larva of a harvest mite. Chiggers are sometimes called redbugs, because they are red in color, or jiggers. See more »

  • Daddy Longlegs
    Daddy Longlegs

    Daddy Longlegs, a popular name used in North America for the harvestman and in England for the crane fly. See more »

  • Harvestman
    Harvestman

    Harvestman, or Daddy Longlegs, a small eight-legged animal related to the spiders. See more »

  • Horseshoe Crab
    Horseshoe Crab

    Horseshoe Crab, a marine arthropod that lives in shallow water. It is also called king crab and helmet crab. See more »

  • Mites and Ticks
    Mites and Ticks

    Mites and Ticks, a group of invertebrates related to spiders. Mites are 1/64 inch to 1/8 inch (0.4 to 3 mm) in length; ticks are 1/8 inch to 1 1/8 inch (3 to 29 mm) in length. See more »

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