Charles and Jon talk to conservationist Bill Robichaud, best known for his work to protect what many would argue is the world's most enigmatic mammal: the Saola.Saolas - a beautifully marked 100kg bovid - are often referred to as the 'Asian Unicorn' because of their scimitar-like horns and rarity. The species, first discovered by scientists in 1992 in the mountains of Vietnam, is one of the most stunning zoological discoveries of the past 100 years. Bill has dedicated his career to trying to ...