But the "quack" sounds have never been conclusively identified. Dr. Chapman says there are theories they were made by Antarctic Minke whales, since the sounds were also recorded in Antarctic ...

Houser agreed that it’s more difficult to study low-frequency sounds. But he said researchers had not reached the lower limit ...

Actually, how do they make sounds?" The Professor is part of a team that's just published new research on whale singing in the ... stranded whales - a humpback, minke and sei - which are all ...