This magnificent planet that we call Earth, is home to millions of species that have adapted to thrive perfectly to there environment. br But what would the world be like, if Humans never existed?br Obviously, there wouldn't be any buildings or roads, no planes flying though the sky or boats sailing across the high seas. There wouldn't be fields of cows, sheep or pigs and there wouldn't be millions upon millions of tonnes of waste buried in landfill sites or floating in the oceans. Instead, the world would probably be covered with vast thriving forests and lush grasslands and the oceans would be crowded with fish and other aquatic creatures.