A new paper pubished in Cell has serious implications for IDist arguments of "no new information" and "mutation only breaks things".
The researchers have found that a gene responsible for neuron development has been duplicated twice in humans only. One of the copies produces a truncated peptide at high levels which interferes with the original protein. This interference has the result that neurons form more connections and over longer distances.
The duplication etc is seen only in humans. It demonstrates how a duplication of existing information, followed by a "breaking" of the gene can have profound events.
1.Cécile Charrier, Kaumudi Joshi, Jaeda Coutinho-Budd, Ji-Eun Kim, Nelle Lambert, Jacqueline de Marchena, Wei-Lin Jin, Pierre Vanderhaeghen, Anirvan Ghosh, Takayuki Sassa, Franck Polleux. Inhibition of SRGAP2 Function by Its Human-Specific Paralogs Induces Neoteny during Spine Maturation. Cell, 2012; DOI: 10.1016/j.cell.2012.03.034