Microbes rule the Earth! When it comes to the variety and longevity of life, no other lifeforms come close. Since the first microbes arose 3.5 billion years ago they continue to thrive and impress us.
It's a feat to spot all 9,900 species of birds and 30,000 species of fish. Insects, not too shabby with 950,000 species. Yet how many microbe species are there? The number is thought to be about 1,000,000,000,000 species of microorganisms. That’s one TRILLION! Don't you just love them?!