01 Jul Wild Elephant Vasectomies: No Bull Posted at 16:16h in Podcast by Wendy Campbell 2 Likes Share https://www.zooradio.org/wp-content/uploads/2017/07/Zoology-podcast-Mark-Stetter-Elephants.mp3 When it comes to the most powerful mammal on land, veterinarian Dr. Mark Stetter has a very steady hand…and a very innovative approach to wild African elephant conservation. (Parental Advisory)