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tube cores for accumulating mud. The seas have kicked up at present, and a number of the researchers normally glued to stools along the microscope bar have retired to ride out the dangerous climate of their bunks. Through my looking glass, the mud world within the petri dish reels from mini-tsunamis, worms flailing, snails spinning in shells, amphipods sprinting on swimmerets, bacterial filaments tying themselves into knots. It’s a abdomen-churning chaos presumably unknown of their deepwater home. Having likewise arrived on the “islands” of underwater seeps and whale falls, the dorvilleid worms build ephemeral communities lasting so long as gas is out there. Like Darwin’s finches, these worms are fast responders, filling empty niches in no time at all, evolutionarily speaking, with fully functioning communities. They are additionally dwelling examples of the sort of speciations that observe on the heels of mass extinctions. She loves the bottom. It’s attainable to read mud, she says. I image her peering out Alvin‘s porthole and monitoring the infinitesimal actions of clams and sea stars. Lisa Levin of the Scripps Institution of Oceanography is likely one of the foremost specialists on these unusual chemical worlds, and is chief scientist for one of the two analysis teams sharing the cruise. Her group is composed of 1 marine biologists and biogeochemists collaborating on a examine of seep ecology and evolution. Petite, in denims and Converse sneakers, Levin leans ahead in pursuit of perpetual questions, then leans again to issue commands. Most of the time she just strikes—fast and quiet, mud-spattered, clipboards in hand. She doesn’t say a lot, possibly the results of working the deepwater for 7 years, making greater than 7 dives into a quiet world no people have phrases for. Among their more enduring mysteries are precisely how these ecosystems become populated with life. There’s proof that whale falls act as crucial steppingstones, or once did. In preindustrialized whaling days, when millions of behemoths were alive at any given time, their carcasses—which can endure and produce gases for as much as a century—would have abounded within the deep, offering oases for the drifting larvae of seep organisms. Yet it’s a mistake to suppose that crucial genetic pools exist solely in the gaudy present of the coral reefs, or the cacophony of the rainforest. Although a hallmark of the desert is the sparseness of its garden, the orderly development of crops, the understated camouflage of its animals, that is only an phantasm. Turn the desert inside out and upside down and also you’ll discover its true nature. Escaping drought and heat, life goes underground in a tangled overexuberance of roots and burrows paying homage to a rainforest canopy, competing for moisture, not mild. Animal trails crisscross this subterranean realm in personal burrows engineered,

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