*sound on* What is this wild male orca communicating? What we hear in this clip are not just random, meaningless sounds. This orca is expressing a complex communication system that is currently beyond the scope of human understanding. But what we do know is that this communication is a sharing of vital information within the pod. It is connection, relationship, in other words, it is culture. Individual orcas express their identity through cultural habits, including dialects—sets of calls learned

(1 HOUR ) OF LISTENING TO ORCA SOUNDS OF COMMUNICATION UNDERWATER - SOOTHING -RELAXING - ECHO

A woman sailing a yacht in the Mediterranean Sea filmed a frightening encounter with a huge orca, which attacked her vessel by repeatedly banging into it. | ABC News