People have known that whales make sounds since the seventies, roughly. And since then people have been wondering, how do they do this? Actually, how do they make sounds?" The Professor is part of ...

Elemans said the animals adapted their voice boxes over tens of millions of years to make sounds ... The whale voice boxes tested were from juveniles, not adult males, who do the singing.

Computer models helped decode whale communication. But some scientists say there are barriers that cannot be overcome.