Oh my goodness! Unless you are a Tree of Life developer, you really shouldn't be here. This page is part of our beta test site, where we develop new features for the ToL, often messing up a thing or two in the process. Please visit the official version of this page, which is available here.


The Arthropod Story

The Understanding Evolution Team
Click on an image to view larger version & data in a new window
Click on an image to view larger version & data in a new window

© The University of California Museum of Paleontology, Berkeley, and the Regents of the University of California Courtesy Understanding Evolution

The Arthropod Story is an interactive investigation that takes you on a tour through the amazing evolutionary history of arthropods. Along the way, you'll get a healthy dose of taxonomy, paleontology, natural history and principles of evolution. You can start at the beginning or pick a section from this list:

  1. Introducing the arthropods
  2. What is an arthropod?
  3. Meet the Cambrian critters
  4. Tools for success: The exoskeleton and the jointed limb
  5. An evolutionary constraint: Small size
  6. Conclusion: Evolution and the arthropod

See the full table of contents here.

Learning Information

About This Page

The Understanding Evolution Team
The Understanding Evolution Team

All Rights Reserved.

 Treehouses are authored by students, teachers, science enthusiasts, or professional scientists. Anyone can sign up as a treehouse contributor and share their knowledge and enthusiasm about organisms. Treehouse contributions are checked for general accuracy and quality by teachers and ToL editors, but they are not usually reviewed by expert scientists. If you spot an error, please get in touch with the author or the teacher. For more information about quality control of Tree of Life content, see Status of Tree of Life Pages.

close box

This page is a treehouse that is attached to a branch of the Tree of Life.

Treehouses are ToL pages designed for children and the young at heart.

For a more detailed explanation of the different ToL page types, have a look at the Structure of the Tree of Life page.

close box


Treehouse Content

articles & notes




Explore Other Groups

random page

  go to the Tree of Life home page