Nature and EnvironmentLiving Planet: The dark sideTo play this audio please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoNature and EnvironmentCharlotta Lomas08/18/2016August 18, 2016From criminal minds to blood-sucking vampires, we uncover the dark side of the animal kingdom.https://p.dw.com/p/1JkyQAdvertisement