Within subphylum Hexapoda there is class Insecta, and within this class there is subclass Pterygota. This clade contains all the flying insects in the world, so it will be a lot of work to describe them all. Let's start out by discussing...

Humanity relies heavily on insects to pollinate the crops that feed the world, but have pesticides, intensive farming and climate change wrought irreparable damage on that crucial ecosystem?

Bumble bee crawling on cement. Queen bee flying insect video.

A Monarch butterfly lands on a flower in Jacksonville Beach, Florida.