Seal Club had an backstory, they were just being normal seals, before they were used as test subjects by scientists. The reason behind the testing is to test out some modern, expert usage of machinery that claims to "give animals the ability to be a human!" And so they tested it, and they thought it worked out without any errors. However, in the middle of the processing, they accidentally hit a button that malfunctioned the looks of the seals, which seemed to be "at a cost." They are all male.