Iguanas possess a row of spines that run from the tip of their heads to the base of their tails. Discover facts about iguanas with information from a published biologist in this free video on lizards and reptiles. Expert: Dr. Alan Richmond Bio: Dr. Alan Richmond is the lecturer and curator of biology at the University of Massachusetts. He is a well-published biologist and has a special interest in reptiles and amphibians. Filmmaker: Demand Media

Be the first to comment