Complex Animals – Annelids & Arthropods: Crash Course Biology #123

In this episode of Crash Course Biology, Hank Green continues our exploration of animal phyla with the more complexly organized Annelida and Arthropoda, and a biol-ography on insects.

References:
http://www.sciencedaily.com/releases/2010/07/100726222316.htm
http://tlc.howstuffworks.com/home/earthworm-appreciation-day.htm
http://annelidsf.blogspot.com/
http://www.bukisa.com/articles/41743_amazing-facts-about-arthropods#ixzz1sXW1Jigp
http://www.ehow.com/about_6292974_interesting-crustaceans.html