"We'd be the first ones to the pool most mornings ... and more than once we found a dolphin pushed out of the pool by the other dolphins," Fischbeck said. "Just laying on the concrete."
Of course, while this behavior is a sad fact of captive life in marine parks across the world, Kyoto Aquarium's dolphins have it even worse. The park reportedly buys its dolphins from the brutal drive hunt in Taiji, where entire dolphins families are rounded up by hunters.
The "prettiest" ones are captured and sold to places like Kyoto Aquarium and other marine parks around the world - a trained dolphin can fetch well over $100,000. Their families are butchered for their meat or thrown back into the ocean, traumatized - in some cases, nursing babies have even been thrown back into the cove without their mothers.
In this case, it's quite possible that these dolphins faced the trauma of losing their families to the hunt before being forced to live in the aquarium's overpacked tanks.