In 2001, scientists tested 4 beluga whales at a New York aquarium; 98 sessions later, it was found the Arctic whales may recognise themselves

In the quiet pools of the New York Aquarium, a groundbreaking experiment was unfolding. It was 2001, and a team of scientists was about to test a question that had long fascinated researchers: could beluga whales, the white Arctic cetaceans known for their expressive faces and complex social lives, recognise themselves in a mirror?

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