Scottish seals have learned how to sing. https://www.cnn.com/videos/world/2019/06/21/gray-seal-vocal-study-orig-vstop-bdk.cnn/video/playlists/atv-trending-videos/ There is an ad before the video.
Scottish seals have learned how to sing. https://www.cnn.com/videos/world/2019/06/21/gray-seal-vocal-study-orig-vstop-bdk.cnn/video/playlists/atv-trending-videos/ There is an ad before the video.