Monday, August 15, 2011

Invertebrates - What are Arthropods?

Arthropods are a group of animals that are invertebrates. There are more arthropods than any other kinds of animals on Earth. Arthropods have a type of skeleton outside their bodies called an exoskeleton. They also have segmented bodies and jointed attachments called appendages.
The exoskeleton is a waxy covering. It protects the animal and helps prevent evaporation of water.  The exoskeleton doesn't grow so the arthropod has to occasionally shed this covering and grow a new larger exoskeleton. This process is called molting. It takes awhile for the new exoskeleton to get hard and protect the animal.

Examples of arthropods are:
  • insects
  • arachnids
  • centipedes
  • millipedes
  • crustaceans

Listed below is a cool slide show link and books for the kids to learn more about arthropods.

Scholastic Study Jams Slide Show
~ Click Here: Arthropods


What Is an Arthropod? (Science of Living Things)   Arthropods (Animal) (Early Library: Animal Kingdom)  Arthropod Collection and Identification: Laboratory and Field Techniques  
 The Best Book of Bugs     About Arachnids: A Guide for Children  Centipede (Bug Books)
    Centipedes and Millipedes (Minipets)   Spiders, Centipedes, and Millipedes (Looking at Minibeasts) About Crustaceans: A Guide for Children


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