The sea covers roughly 70% of our planet, yet we know surprisingly little about its depths. Vast, mysterious, and often unfathomable, it hides countless shipwrecks, scary creatures, and other secrets that we might not be able to uncover for years to come.

However, even the facts that we have learned about the ocean can feel bizarre or unsettling when you stop to think about them. And this is precisely what the Instagram account 'The Weird Unknown' specializes in! Scientific discoveries, chance encounters, it's all there.

What started as a routine cleaning job turned into a once-in-a-lifetime discovery for Jennifer Dowker, a boat captain and scuba instructor in Cheboygan, Michigan. While cleaning the hull of her glass-bottom tour boat, she spotted a small green bottle resting on the river

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