It seems unthinkable now, but back in the 1970s, dolphins were allowed to swim in Liverpool's swimming baths as part of touring shows.
Bizarrely, in the early 1970s, a number of the city's swimming baths were used to stage a show involving the highly intelligent marine mammals. One 350lb dolphin, naturally named Flipper, was one of the show's big attractions.
These days, such a spectacle would never be allowed. But there's no doubt the 1970s was a completely different era and such shows were commonplace not only in Liverpool but around the UK.
