In this unit we will continue to discuss the characteristics of aquatic animals categorized as vertebrates (animals with backbones) and focus on birds.
Copyright © 2005 Pearson Prentice Hall, Inc. Chapter 23 Animal Diversity II: Vertebrates.
18.16 Lampreys are vertebrates that lack hinged jaws –Lampreys represent the oldest living lineage of vertebrates Suspension feeders in freshwater streams.
