Vertebrates and invertebrates

The video tutorial explains how animals can be classified into two main groups: vertebrates and invertebrates. Vertebrates are animals with a backbone, such as rats, birds, and lizards. In contrast, invertebrates lack a backbone, examples include squids, spiders, insects, and worms. The video provides visual examples to help identify these groups and concludes by summarizing the classification.

List some examples of invertebrates as described in the text.

How can we categorize all animals based on the presence of a backbone?