The black finless porpoises are putting on a daily underwater bubble ring show at the Fukuoka Aquarium. Here’s how [RocketNews]:
“While it may seem like the work of aquatic sorcery, the porpoises’ performance is actually the result of long-term training by aquarium staff that takes advantage of instinctual behavior in the porpoise. In the wild, the porpoises apparently blow onto the ocean floor to drive out small fish hiding in the sand.”
