http://pbs.org/earth-a-new-wild
Premieres Wednesdays February 4-25, 2015 on PBS
It’s not just for feeding that cichlids have evolved some bizarre behavior, it’s also for the business of reproduction! During breeding and mating cichlids also display some unusual adaptations, they build arenas out of sand that males will dance in or other species will use a shell as a home. Sanjayan comes across one individual who has made his home in a shell.