Fin-to-limb transition is an icon of key evolutionary transformations. Many studies focus on understanding the evolution of the simple fin into a complicated limb skeleton by examining the fossil record. In a paper published February 4 in Cell, researchers at Harvard and Boston Children’s Hospital examined what’s occurring at the genetic level to drive different patterns in the fin skeleton versus the limb skeleton.
Click here for original story, Can a fin become a limb? Single mutations cause zebrafish fins to transform into complex limb-like structures
Source: Phys.org