There are about 6.5 billion humans on the planet, but we are by far outnumbered by insects. There are at least a million insects for every one of us!
With over a million species described, insects are a major group of arthropods and the most diverse group of animals on the Earth — more than half of all known living organisms — with estimates of undescribed species as high as 30 million, potentially representing at least 80% and maybe over 90% of the life forms on the planet. Together they would weigh more than 12 times as much as the human race!
Sources: Natural History Museum, Wikipedia
