– Manuscript – Researchers have made the most in-depth estimate yet of the world’s ant population. The total number of these resourceful insects was estimated to be 20 quadrillion. A quadrillion is expressed with a one, followed by 15 zeros. The estimate means that there are about 2.5 million ants on Earth for every human. Ants have been on the planet since the … [Read more...] about Scientists Estimate the Ant Population on Earth