Turns out, the deep sea isn’t just a dark, empty abyss—it’s a bustling highway! Scientists finally cracked the mystery of how big predators like sharks hang out in the ocean’s twilight zone: mid-sized fish are making daily commutes up and down, moving energy and carbon through the depths. Plus, hidden microbes and strange cells down there might be key to climate and even the origins of complex life. The ocean’s got way more going on than we thought! #Science #DeepSea #OceanMystery