A marine biologist from New Zealand claims to have witnessed a captive killer whale mother who was too depressed to feed her calf during a trip to SeaWorld in San Diego.
Dr. Ingrid Visser, a researcher specializing in orcas, was filmed at the amusement park with John Hargrove, a former orca trainer, reacting to the behaviors that the animals displayed in their tanks.
Visser and Hargrove's video comes just weeks after the California Coastal Commission approved a $100 million expansion to tanks at SeaWorld. The commission stipulated, however, that SeaWorld was no longer allowed to breed its captive orcas.
SeaWorld has come under fire in recent years, particularly after the release of the documentary "Blackfish" in 2013, over concerns about its treatment of killer whales.
The company's stock has been under pressure as a result. It defends its record at length.