Scientists have been baffled by the 40-foot-long mass of gelatinous tissue found on a remote beach in southern Chile, with initial hunches ranging from whale blubber to a disputed species of giant octopus.
Researchers at the Museum of Natural History in Santiago were the first to reach a conclusion after analysing samples of the decaying specimen and finding glands of a sperm whale.
"It has not been necessary to do DNA analysis in order to obtain identification, it was enough to find the dermal glands that belong only to this group," the scientists Sergio Letelier and Jose Yanez said in a statement on Friday.