The lifespan of fairground fish is believed by many to be not very long, though plenty of fish have defied the odds and gone on to live long, happy and healthy lives. These goldfish have survived ...

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Scientists have proved goldfish do have good memories and are able to navigate their surroundings. A team from Oxford University trained nine fish to travel 70cm (2.3ft) and back, receiving a food ...

According to a study by Harvard Business School, humans are evolving in the wrong direction: our attention span had dropped to eight seconds in 2015 - lower than that of a goldfish. That means ...