Four Arnoux's Beaked Whales Observed From Polarstern Expedition
January 27, 2007 @ 02:58 PM (EST)
Source: Alfred Wegener Institute
On the 17th of December, Meike Scheidat & Linn Lehnert, the whale watchers on board of Polarstern, made a remarkable cetaceans sighting: Four Arnoux's Beaked Whales (Berardius arnuxii), observed from the helicopter.
The Arnoux's Beaked Whales is one of the least known species of the Beaked Whales family (Ziphidae), itself poorly known in general. Arnoux's is one of the biggest species amongst beaked whales. The ones observed were probably 9 metre long. These deep-sea feeding whales are particularly sensitive to underwater acoustic disturbances. The pictures showed a whole array of scars on their skin, which are already under investigation. Some of these scars could have been inflicted by orcas, their potential predators, or by squids, their most common preys...
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