Animals are divided into two main groups: Animals with a backbone are called vertebrates. Animals without a backbone are called invertebrates. Vertebrates and invertebrates can be sorted into ...

Within the paleontology section are two divisions, Vertebrate Paleontology and Invertebrate Paleontology (which includes fossil plants). Invertebrate Paleontology now has over 300,000 cataloged fossil ...

Animals that have a backbone are called vertebrates. Animals that don't have a backbone are called invertebrates. Vertebrates and invertebrates are divided into smaller groups. Vertebrates ...

Discover the watery world of jellyfish, seahorses, sharks and other ocean creatures. Learn about the characteristics of marine vertebrates and invertebrates by observing museum specimens. Science ...

Mike Anglin | Dallas, Texas Human-caused factors have led to anatomical changes in both vertebrates and invertebrates. One example is the peppered moth: In the early 20th century, air pollution ...