Oceanography is the study of earth's oceans. Take a look at these ocean facts about marine life, tides, currents, and more and you'll sea just how cool our oceans really are.
A squid's brain is shaped in a ring or doughnut, with its esophagus passing between through it.
The lion's mane jellyfish is the largest known species of jellyfish. Their 800-plus tentacles typically grow past 30 m in length.
On average, the ocean is 3,682 m deep. That's about 8 Empire State Buildings, stacked on top of each other. The deepest part is 11,030 m—that's 25 Empire State Buildings.
It's estimated that there are over 18 billion kg of gold hidden beneath our oceans. If it were possible to mine it, there would be enough gold for every person on the earth to own 2.5 kg, worth almost $100,000.
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