At One Place

How many: living things and the natural world

18 living things and the natural world counts.

Question Answer
How many people are there in the world? about 8.2 billion
How many grains of sand are there on Earth? roughly 7.5 quintillion on the world's beaches
How many ants are there in the world? about 20 quadrillion
How many trees are there in the world? about 3 trillion
How many insects are there? about 10 quintillion
How many species are there? about 8.7 million
How many people have ever lived? about 117 billion
How many drops of water are there in the ocean? about 27 septillion
How many fish are there in the sea? somewhere between 3 trillion and 100 trillion — nobody knows
How many species are endangered? more than 45,000 assessed as threatened
How many bees are there in the world? roughly 2 trillion managed honey bees
How many birds are there in the world? about 50 billion wild birds
How many bacteria are there on Earth? about 5 nonillion
How many earthquakes are there each year? about 20,000 located a year — around 55 a day
How many chickens are there in the world? about 26 billion alive at any moment
How many hurricanes are there each year? about 85 named storms worldwide, of which roughly 45 reach hurricane strength
How many leaves are there on a tree? about 200,000 on a mature oak
How many blades of grass are there in the world? very roughly 2 quintillion