Question specifically regards vertebrates. Vertebrata is a Subphylum within the Chordata Phylum, and Animalia Kingdom. Vertebrates are animals with backbones and consist of 4% of the described animal species, and include mammals, birds, amphibians, reptiles, and several Classes of fish.
See question title. After doing some looking around on my own I haven't found much so I figured I'd ask some experts.
Reading this question, I wondered why is it that we associate vertebrate venoms so often with snakes and fish, and more rarely with lizards, amphibians, mammals, and birds (apparently never, in ...