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DAVID GREENE, HOST:

Imagine a place on earth where there's been no light, no wind for millions of years. Lake Vostok is one such place. The world's third largest lake, in terms of amount of water, has long been hidden, buried beneath two miles of ice until, perhaps, this coming week. Russian researchers are about to break through that ice.

Two thousand people who make reality television gathered this week for a convention in Washington, D.C. No appearances from Snooki or Padma, but there were representatives from Celebrity Wife Swap, Deadliest Catch and Rocket City Rednecks. Hundreds of producers vied for the chance to pitch network executives their ideas for new shows. NPR's Neda Ulaby reports.

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DAVID GREENE, HOST:

Well, now on to some slightly warmer waters. Sturgeon have been swimming around for more than 200 million years. But their eggs have long been sought after and for caviar and they've been overfished. This week, the National Marine Fisheries Service placed the Atlantic sturgeon on its Endangered Species List, and the ruling has implications that go far beyond the caviar industry.