Winston, one of the latest arrivals at the aquarium at Bristol Zoo, is so talented he's been trained to come to keepers for food.
The blackspotted pufferfish has doleful eyes and dark shading around his mouth, which make him look like a small underwater puppy. In fact the species is also known as the dog-faced puffer.
Just like a dog, Winston has been trained to come across to keepers for food. He swims to a small floating ring through which he raises his head to be fed.
Winston's keeper Olivia Edgar also says that the trick ensures he gets enough to eat. He doesn't swim as fast as the other fish who tend to beat him to food scattered for them.
Winston came to Bristol Zoo from the SeaQuarium at Weston-super-Mare, which closed recently. He is one of 40 fish from the resort’s former attraction to have been transferred to the Zoo.