Wildlife managers in South Africa face a unique challenge: balancing the needs of a rising number of elephants with the needs of other species in limited preserved areas. The contraceptive PZP offers a humane solution. Research shows it doesn’t just prevent individual cows from giving birth, it slows the growth rate of an entire elephant population.
Lange, Karen E.
"End of Culling?,"
Serial - All Animals 2009-15: Vol. 17
, Article 7.
Available at: https://www.wellbeingintlstudiesrepository.org/allanimals/vol17/iss2/7