Animal Planet logo (black and green version). Used from 2008 to October 2018 (US and UK) or the end of Q1 2019 (other markets)
Discovery Communications
vectorized from <a href="//commons.wikimedia.org/wiki/File:Animal_Planet_logo_(black_and_green_with_TM).png" title="File:Animal Planet logo (black and green with TM).png">File:Animal Planet logo (black and green with TM).png</a>