Charles and Jon talk to Australian author, broadcaster and wildlife nut Bradley Trevor Greive (BTG) from his home in California.  BTG has an extraordinary CV: he was a paratrooper and cartoonist before becoming a successful author and broadcaster. In between he found time to win the French Polynesian Rock Lifting Championship, graduate from the Russian Cosmonaut Space Program, spend 6 years working on Brown Bears in Alaska and still practice on his ukulele. And he devotes considerable energy ...

Episode 4: The Vaquita (with Barbara Taylor & Lorenzo Rojas-Bracho)

Charles Foley and Jon Hall talk to mammalwatchers, biologists, conservationists and those with a passion for observing and protecting the world's wild mammals. For more information visit www.mammalwatching.com/podcast.Dr Charles Foley  is a mammalwatcher and biologist who, together with his wife Lara, spent 30 years studying elephants in Tanzania. They now run the Tanzania Conservation Research Program at the Lincoln Park Zoo in Chicago. Jon Hall set up mammalwatching.com in 2005. Genetically Welsh, spiritually Australian, currently in New York City. He has looked for mammals in over 100 countries.Produced and edited by  José G. Martínez-Fonseca, mammalwatcher, photographer and wildlife biologist.