Text-books - Of Animal Biology A General Zoology ...

How they regulate body temperature (Ectotherms vs. Endotherms). 5. Ecology and Behavior Finally, look at how animals interact with their world:

Before diving into specific animals, you need to understand the "rules" of life. Focus on: TEXT-BOOKS OF ANIMAL BIOLOGY A General Zoology ...

Start with Porifera (sponges) and move through Cnidarians, Platyhelminthes (flatworms), Mollusks, Annelids, and the massive group of Arthropods (insects/spiders). How they regulate body temperature (Ectotherms vs