What is vertebrate zoology?

Within the Animal Kingdom there are many phyla, or categories of animals. One such category is chordata. All chordates have, at some time in their development, a notochord. For some animals this notocord later develops into a spinal column

Vertebrates are members of the subphylum vertebrata: chordates with backbones or spinal columns.

Vertebrate zoology is the study of non-human vertebrates.