Vertebrates
Our new unit is on Vertebrates. We will be studying animals until the end of April. Important Info on Vertebrates All vertebrates have a backbone.There are 5 kinds of vertebrates: fish, mammals, amphibians, birds, and reptiles. Here is a link to more information on vertebrates. Another helpful website is http://www.davidlnelson.md/Cazadero/FiveVertebrates.htm . Fish : cold-blooded, most have scales, breath in water (gills) Birds : warm-blooded, feathers, lay eggs Reptiles : cold-blooded, scales, lay eggs Amphibians : cold-blooded, start out living in water with gills and transition to land growing lungs (transition), lays eggs in water Mammals : warm-blooded, nurse their young, fur/hair Invertebrates are animals that do not have a backbone/spine.