Ok but don’t we know more about the moon than the Ocean? Didn’t they find an extinct animal a couple years ago still alive? How do they know it’s gone down total?
By observation. For example we know that fishermen have to go further from land to catch fishes now. Perhaps migrations size and local population has decreased too?
I highly doubt 10 trillion fish are going to all decide at once to hide out in the depths of the ocean... since... you know... 99% of them would die after a day.
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