Why are invertebrates more diverse than vertebrates?

" Vertebrates comprise a single subphylum under the Phylum Chordata. While"Invertebrates" is literally, everything else among metazoans (animals). So of course the latter are more diverse. read more

A vertebrate respiratory system relies on organs like lungs or gills for gas exchange in the blood stream, whereas invertebrates have simple respiratory systems. Insects generally tracheal systems that branch from openings in the surface called spiracles directly to their internal organs. read more

Animals can be classified into two main groups: vertebrates and invertebrates. The main difference between vertebrates and invertebrates is that invertebrates, like insects and flatworms, do not have a backbone or a spinal column. Examples of vertebrates include humans, birds, and snakes. read more

There is a lot more invertebrates then vertebrates, and more invertebrates are being discovered every day. But, like everything in ecology and evolution, there is more then one reason, and probably some reasons we don’t even know about yet. read more