You Won't Believe Your Eyes! These Animals Really Existed
There are 8.7 million tagged species on Earth, but scientists estimate that over 80 percent of life on this planet still remains undiscovered. It’s truly remarkable that with all of these animals occupying the same space as us, on an average day we might only see a dog and maybe a couple of pigeons. It’s likely we will never be able to see all 8.7 million.