Wild Kratts, Season 4, Episode 13, The Mystery of the Two Horned Narwhal
directed by Chris Roy, fl. 1997 and Chris Kratt, 1969-; produced by Cheryl Knapp, fl. 1991; performed by Martin Kratt, 1965- and Chris Kratt, 1969-, in Wild Kratts, Season 4, Episode 13 (Arlington, VA: Public Broadcasting Service, 2017), 27 mins