PRI's The World Published by PRI's The World How to bring out the wild in zoo animals Listen Queue Download this audio Want to embed this player? Use the code below. More info. <iframe frameborder="0" scrolling="no" height="130" width="100%" src="https://www.wnyc.org/widgets/ondemand_player/wnyc/#file=/audio/json/728541/&share=1"></iframe> Share on Facebook Share on Twitter Email a Friend Hilda Tresz of the Phoenix Zoo specializes in behavioral enrichment. It's not about giving zoo animals toys, she says. It's about giving them some control over their lives.