Did you know that the ocean covers 71% of the Earth’s surface? | National Geographic

Did you know that the ocean covers 71% of the Earth’s surface? It also holds about 96.5% of all Earth's water — that's a volume of 320 million cubic miles! Living in all of this ocean is an unknown number of eukaryotic species, but some studies estimate that a quarter of all eukaryotic life on Earth lives in the ocean. That would imply that there are ∼2.2 million eukaryotic marine species!

(All animals, plants, fungi, and many unicellular organisms are eukaryotes)

Information provided by Coastal and Marine Hazards and Resources Program / USGS research

National Geographic