A gene found in humans (and other species) is named "Sonic hedgehog," while its possible inhibitor is called Robotnikinin. These are named in honor of the video game characters Sonic the Hedgehog and his nemesis, Dr. Ivo "Eggman" Robotnik.
A new "walking" shark species has been discovered in eastern Indonesian waters. The shark uses its fins to move in a walking motion along the ocean floor.