What makes spiders different from insects

You can find out more about animal groups such class, family and kingdom on this page: Animal Classification. Spiders are more closely-related to other arachnids, such as scorpions and solifuges camel spiders , than they are to insects.

Although both groups — arachnids and insects — are descended from the same animals, these animals lived hundreds of millions of years ago.

The similarities between arachnids such as spiders and insects are due to their shared ancestry. Arachnids and insects both belong to a larger group of animals, Arthropoda.

The ancient ancestor of both spiders and insects was an arthropod. Other arthropods include crustaceans animals such as crabs and lobsters , myriapods millipedes and centipedes , and various other related groups of invertebrate animals. The bodies of arthropods are divided into distinct sections.

This is likely a result of their having originally evolved from worm-like animals with segmented bodies. All arthropods have an even number of jointed legs. These have evolved to perform different tasks depending on the arthropod group.

Insects, arachnids, and myriapods Why are cicadas so loud? Why are sand fly bites so itchy? Insects, arachnids, and myriapods What is a bug? What are arthropods? The main types of bugs Insects Insects have six legs and their body has three major segments: the head — includes eyes, mouthparts, and antennae the thorax — includes legs and sometimes wings the abdomen — includes gut, reproductive organs, and sometimes a stinger Examples of insects are dragonflies, flies, fleas, butterflies, moths, cicadas, beetles, bees, ants, and wasps.

Caption Jewel beetles, Buprestidae , Worldwide, Te Papa. Caption Orb-web spider, I absolutely love this post. It reminds me of that series. I was really disappointed when the magazine folded. Glad to have bloggers like you out there helping moms like me! Thank you for a fun, informative, and easy lesson. I know it was developed for preschoolers, but I will be using it with a group of 1st graders.

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Start Here. Build-A-Bug To start, you need to be prepared with playdough and pipe cleaner segments. Insect Point out that insects have three body parts head, thorax, abdomen. Spiders For your spider discussion, follow in a similar way, narrating and building as you go, showing how the parts may differ for different types of spiders big round abdomen or long skinny abdomen, etc. On the other hand, the insects belong to the class of Insecta.

We also look into the structures of these organisms. For insects, they have three pairs of legs or six legs. On the other hand, spiders have four pairs or eight legs. Spiders and insects also have a difference when it comes to their major body parts. Spiders only have two main body parts while insects have three main body parts. Insects have their head, the thorax, and the abdomen.

As for the spiders, they already have a combined head and thorax. This combined thorax and head is called a cephalothorax, but they do still have an abdomen. There are also differences between spiders and insects when it comes to their minor body parts. The insects use their mandibles to consume food. As for spiders, they use their chelicerae to consume their food.