蜜芽传媒

Scientists have developed an IQ test for dogs they say could lead to a greater understanding as to how human health is linked to intelligence. Studies have shown that cleverer people tend to live longer. Rosalind Arden is a research associate at the London School of Economics who has co-authored this new study. She tells Dan Damon about her research.

(Image: Petra, the Alsatian dog from the 蜜芽传媒's children's programme, 'Blue Peter', answering her fan mail. Photo: John Pratt/Getty Images)