Fishmen Find Strange Creature on Iceberg, Then What Happens?

Noises getting louder

David is right behind Emily, when he hears the alarm sounds. David realizes there’s something urgent that needs to be addressed. As they move closer, the sounds become louder.

Unable to recognize the sounds

Emily asks David whether he can recognize the sounds. David says he’s never heard sounds like this before. Both of them have no idea what animal could make these noises.

The wolf and the man are connected. What is the connection?