![]() In a study published July 11 in the journal Current Biology, they report on the explosion of a community of glass sponges-organisms with skeletons made of silica, a mineral component of glass-on the seafloor below where an enormous ice shelf used to be. Researchers have found a "boomtown" of sponges. But that thinking has changed, in part because of a startling discovery off the eastern coast of the Antarctic Peninsula. Marine creatures called sponges, which live on the seafloor, have been known to go a decade without any measurable growth in the Antarctic. Conventional wisdom holds that life in Antarctica moves at a glacial pace.
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