Evolution http://www.kplu.org en A Shimmery Sea Blob From The San Juans May Have Just Upended Evolutionary History http://www.kplu.org/post/shimmery-sea-blob-san-juans-may-have-just-upended-evolutionary-history <p><iframe frameborder="no" height="166" scrolling="no" src="https://w.soundcloud.com/player/?url=https%3A//api.soundcloud.com/tracks/150674167&amp;color=ff5500&amp;auto_play=false&amp;hide_related=false&amp;show_artwork=true" width="100%"></iframe></p><p>A squishy little sea creature fished out of the Salish Sea may be <a href="http://www.nature.com/news/genome-reveals-comb-jellies-ancient-origin-1.12176" target="_blank">rewriting our history </a>of how animal life first evolved.</p><p>They’re called comb jellies, and they have nothing to do with hair products. They are translucent blobs that propel themselves with rows of shimmering threads called cilia.</p><p>Scientists captured specimens at the University of Washington Friday Harbor Laboratories and analyzed their genomes, coming to two pretty startling conclusions. First, these animals have nervous systems, but they look almost nothing like those of people or fish, or any other animal on Earth.</p><p> Thu, 22 May 2014 12:01:00 +0000 Gabriel Spitzer 16766 at http://www.kplu.org A Shimmery Sea Blob From The San Juans May Have Just Upended Evolutionary History An Evolutionary Whodunit: How Did Humans Develop Lactose Tolerance? http://www.kplu.org/post/evolutionary-whodunit-how-are-adult-humans-able-digest-lactose Got milk? Ancient European farmers who made cheese thousands of years ago certainly had it. But at that time, they <a href="http://www.pnas.org/content/104/10/3736.abstract">lacked</a> a genetic mutation that would have allowed them to digest raw milk's dominant sugar, lactose, after childhood.<p>Today, however, 35 percent of the global population — mostly people with European ancestry — <a href="http://www.aafp.org/afp/2002/0501/p1845.html">can</a> digest lactose in adulthood without a hitch.<p>So, how did we transition from milk-a-phobics to milkaholics? Fri, 28 Dec 2012 20:59:37 +0000 7463 at http://www.kplu.org An Evolutionary Whodunit: How Did Humans Develop Lactose Tolerance?