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 ...

Vertebrates are animals that have a backbone inside their body. The major groups include fish, amphibians, reptiles, birds and mammals. Invertebrates don't have a backbone. They either have a soft ...

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 ...