In the 1970s, Patricia Wright left her a life as Brooklyn housewife to begin a journey that led to her becoming one of the world's leading lemur experts.The programme is available to Listen Again here.
Gabrielle Walker travels to Madagascar to meet Pat and the lemurs, finding out what it's like to discover an entire new species, and encountering Mother Blue - one of the oldest animals in the forest.
Back on 25th July, the programme was devoted to conservationist Carl Jones's work with the Pink Pigeons!. Click to Listen Again to "A Life With Pink Pigeons".
Conservationist Carl Jones left Wales 26 years ago for Mauritius - once home to the infamous Dodo - to try to stop the unique Mauritian pink pigeon sharing the Dodo's fate. Among the island's ebony forests and giant tortoises, he tells Grant Sonnex what his life's work has taught him, and why he is optimistic for the future of conservation worldwide.