#lobefin

Well-established fossil evidence shows the transition of tetrapods (four-limbed animals) from their fishy ancestors (see here:  http://evolution.berkeley.edu/evolibrary/article/evograms_04).  But genetic researchers had up to now only hypothesized how this was done genetically, with no real evidence to show how such changes in the genetic code could be generated.  Now, they do.  Click the title above to read about what they accomplished!