Award-winning writer Amorina Kingdon explains how sound rules the underwater world

The team catch up with string of guests whom include marine researcher, Dave Donnelly, explaining the adolescent periods in whales. PhD student Morgan Ellis who discusses their research about the ecology of the North Pacific waters. Kara Hull reports from South Australia about the cuttlefish season while later award-winning science writer Amorina Kingdon states that the underwater world isn't actually as quiet as we thought it to be.