Understand how the system works we have to look at all the players involved Giant larvaceans are one important group we need to learn more about.” In the past other scientists have tried studying giant lar vaceans in the laboratory But these efforts always failed because the animals’ houses were too fragile to be harvested and collected specimens were never able to build .
Sifting through teaspoons of clay and sand scraped from the floors of caves German researchers have managed to isolate ancient human DNA — without turning up a single bone Their new technique descr in a study published on Thursday in the journal Science,
