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Wildlife groups sound seismic alarm

An alliance of wildlife groups warned that seismic operations, increasing vessel numbers and the latest military sonars are intensifying threats to marine mammals that use sound to communicate, forage for food and find mates.

Marine mammals under threat: like these bow-head whales in Alaska
Marine mammals under threat: like these bow-head whales in Alaska
  • Iain Esau
Published 4 December 2008, 04:45Updated 9 July 2012, 07:57