Keepers at Woburn Safari Park were surprised to discover a new aquatic species had moved into Sea Lion Beach last week.
It’s thought they might be distantly related to Pilot Fish, that follow sharks and clean their skin, but the species is now being investigated.
The strange creatures looked at home in the water and are obviously quite house proud as they began to clean the glass on the inside of the pool viewing windows, which they share with the Californian Sea Lions.
This may well be a new species discovery for the park, classified as an aquatic mammal called scubadius sanitarius.
The keepers say we’ll have to wait and sea the results of the investigation - but could it all just be a fisherman’s tale?
Regardless, it’s not stopping the Sea Lions finding it all very entertaining in the meantime.