By Anders Anglesey A bizarre deep-sea blob that looks like it has the “rump of a pig” and Mick Jagger’s lips could be in the middle of an evolving. The tiny pigbutt worm was first discovered in California’s Monterey Bay in 2001 and instantly made an impression on staff at the Monterey Bay Aquarium Research Institute (MBARI). When it was discovered, scientists were unsure of how to categorise the curious critter. MBARI video showed the rare animal floating gently about half a mile below the surface. Its unique appearance sparked comparisons with not only a farm animal, but also a certain Britis…