Elusive artist Banksy has been on a rampage of animal-inspired drawings over the last week in London – with his latest piece of work a group of piranhas on a police sentry box.

Even the latest high jewelry collections had fish, such as Van Cleef & Arpels’ clip of diamond-studded fish swimming in a glittering ocean of 128 blue and mauve sapphires, weighing a total of 40 ...