Orcas will line up and swim together in perfect synchrony and at the perfect depth to make a wave to wash a seal off an ice floe. https://youtu.be/K16lZU0agbg h

Orcas will line up and swim together in perfect synchrony and at the perfect depth to make a wave to wash a seal off an ice floe. https://youtu.be/K16lZU0agbg https://youtu.be/K16lZU0agbg