So it should be no surprise that from these numbers and the widespread area that they live, and as long as they have been here on our planet, that some of the weirdest creatures that have ever existed are from the insect world. Well, the word insect literally means sections . Connected to the middle will also be six legs. Often confused incorrectly, as insects, are spiders. Spiders are arachnids.
Some beetles have horns.
These horns are often of such a huge size in proportion to their body that they have no real use, other than to fight other beetles with. Another type of beetle, a blister beetle produces a substance called cantharidin that is so caustic it has been used in the removal of warts. Also from the beetle class of insects come fireflies and glowworms, which use chemicals in their bodies to actually make themselves glow. Scientists believe that they use chemicals in their bodies with the oxygen in the air, causing the glowing effect. Whirligig beetles have two sets of eyes.