Is there any animal that has a greater population than humans?

Meet Cyclops: Cyclops is one species of Copepod, which is a small crustacean that lives in fresh water all over the world. Guaranteed, you are only a few feet away from more copepods than you have family members. No doubt, the world's copepods weigh more than all of the world's humans put together. read more

Some animals have larger population than humans. Human is a mammal animal, and it predicted human population may cross 9,7 billion in 2050 and over eleven billion in 2100, BUT if we have fertility rate below replacement line population instead reach less than 3 billion in 2100. read more

Among all animals, ants outweigh us in biomass — putting billions and billions of tons up against humans' fewer than 500 million. And while they're both tiny and lacking a backbone, krill are the champs among animals worldwide, in terms of numbers, with a population estimated at 500 trillion. read more