experienced the world under the frozen sky often speak of it as going down into the ca Back from the strange world underwater, scientists study the samples. One of the foremost scholars in the world in his field, Dr. Pawlowski, studies the DNA sequences of foraminifera. What looks esoteric is in fact one of the fundamental questions about life on Earth. In the same way that cosmologists search for the origins of the universe, the scientists here are tracing back the evolution of life to its earliest stages. Sometimes the building blocks of the sequences all seem to fit. Jan, what have you found today so far on the sample that we found? - Three new species. - Three new species. Three new species on the dish. That's fantastic. - This is from the ROMEO site. - Yeah, from the ROMEO site. It's one small silver and two elongated ones. I don't know what it is. We have to do the DNA, too. We don't know... Is this a great moment? - Yeah, yeah, this is. - Yeah, any time you increase the known diversity of these types of creatures, it's pretty exciting. Yeah. That is very special. Apologies to rock musicians everywhere. Once the importance of the discovery has sunk in, Sam Bowser and his group plan to celebrate the event in their own way. They are rehearsing for a late-night outdoor concert. After the helicopter had dropped us off back at McMurdo, nobody was around. The sundial showed