Summary
It may seem like the ultimate in communing with nature, but according to one North academic, whale watchers are seriously cramping the style of the Kings of the Deep.
Durham University zoologist Rus Hoelzel has studied whale songs over the last 27 years.See the full content of this document
Extract
Killers Cranking Up the Volume
Now he has discovered that killer whales are having to sing longer and louder to make themselves heard over the soun...
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