If you gathered together all the viruses in all the humans in the world, they would fill about ten oil barrels.
These 10 barrels only represent a tiny portion of the global virus community. Most of the world's viruses aren't found in humans. They're found in the sea.
Seawater is full of microorganisms, and we've recently learned that those microorganisms are preyed on by viruses in a big way. Every day, about one in five living cells in the ocean is killed by a virus. These viruses are found from the surface of the ocean down to the depths. Because the sea is so big, it contains a staggering number of viruses.
https://what-if.xkcd.com/80/
These 10 barrels only represent a tiny portion of the global virus community. Most of the world's viruses aren't found in humans. They're found in the sea.
Seawater is full of microorganisms, and we've recently learned that those microorganisms are preyed on by viruses in a big way. Every day, about one in five living cells in the ocean is killed by a virus. These viruses are found from the surface of the ocean down to the depths. Because the sea is so big, it contains a staggering number of viruses.
https://what-if.xkcd.com/80/