Researchers just published details of a massive undersea graveyard of whales deep in the Indian Ocean. Spanning about 1,200 kilometers (745 miles), it contains whale remains dating back more than 5 million years—and at least five active whale fall sites still teeming with life. Fossil whale expert Nick Pyenson joins Host Flora Lichtman to discuss these findings.Then, marine biologists Rachel Sipler and Sara Jobson join Ira Flatow to describe an unusual discovery in certain species of sea cucumbers: If a foot or tentacle becomes detached, the parts don’t wither up and rot away. Even without a stomach, these parts appear to directly extract nutrients from the surrounding seawater. “Zombie” sea cucumber parts have been observed surviving for more than three years.Guests:Dr. Nick Pyenson is curator of fossil marine mammals at the Smithsonian National Museum of Natural History.Dr. Rachel Sipler is a senior research scientist in the Bigelow Laboratory in East Boothbay, Maine.Sara Jobson a PhD student at the Memorial University of Newfoundland in St. Johns, Canada.Other episodes you may enjoy:

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