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Political parties in Mexico are being accused of using bots to influence voter behaviour before the upcoming presidential election. Who’s behind online propaganda in the country and what are the new groups trying to fight the spread of fake news ?

We tackle some of our listeners’ questions from Australia: do one in seven businessmen throw out their pants after wearing them once? This is a claim made by an expert talking about clothes waste – but what does it come from? Do horses kill more people than venomous animals? And how many Australians have used cannabis – is it as many as is claimed?

Why do we have such a close and complex relationship with dogs? Whether you love or hate them, it’s undeniable that they're special to us. Mary-Ann Ochota delves into the emotion, science and history that sets them apart.

(Photo: Automated accounts boosted the 2012 presidential campaign of Enrique Pena Nieto. Credit: Getty Images)