What percentage do large, furry and feathery animals make up of all the species on Earth?
First we have to define what is meant by the question. When you refer to large, furry and feathery animals, I will assume you mean birds, and mammals. Even mammals that live in the water, and don't look like they have fur, have some form of it. So I will look at your question as "what percentage of all animal species do birds plus mammals comprise?". The short answer is, a small percentage. The numbers vary depending on what source is counting, but mammals plus birds make up a small percentage of the species of animals, anywhere from 1-10% of all species--again, these numbers vary, as some take into account the huge numbers of yet-undiscovered species of insects assumed to be out there. There are only about 4,000 species of mammals and 10,000 of birds, but about 350,000 species of beetles!