Mrs. Doyle’s Class: Vertebrate or Invertebrate?

This year, we have learned that all things in the world are either living or non-living.  We also learned to classify living things as either an animal or a plant.  Now we are ready to go one step further and begin to study animals.

The children learn that the study of animals is called zoology. All animals can be classified as vertebrates or invertebrates. Vertebrates have a backbone and invertebrates are animals that do not have a backbone. We help the children understand this concept by having them run their fingers along their spine to feel their backbone.

The majority of animals that we think about, such as dogs, cats, birds, fish, alligators, and frogs are vertebrates.  However, there are actually more invertebrates living on our planet. More than 90% of all animals are invertebrates. Vertebrates tend to be larger in size because their backbones allow them to have muscles and a strong body. Invertebrates tend to be small, as no backbone means they can’t support a large body.

Learning about vertebrates and invertebrates is an important lesson. With this knowledge, we are ready to begin classifying vertebrates into five different groups: mammals, amphibians, fish, birds, and reptiles.

Wishing you a week filled with peace and love!

Michelle & Lizette