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Showing posts with the label pilot whales

650 Pilot Whales Beach in New Zealand

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Pods of whales beach because they are suffering barotrauma in their cranial air spaces induced by rapid and excessive changes in diving pressures caused by (1) vertical thrusting seafloor earthquakes, (2) undersea volcanic explosions, (3) the sudden collapse of an undersea volcanic caldera, (4) the violent impact of a heavenly body with the ocean's surface, (5) the noise from a massive undersea landslide, (6) military sonar, and (7) explosives. Pilot whales spent 40 to 50% of their lives diving deep into the black depths of their undersea world looking for food. They use the most sophisticated acoustic sonar system ever known. Just like a bat flying in pitch black cave, the basics of the odontocete biosonar is the sending out of clicking sounds and reading the returning echoes. The clicks are produced by passing air through phonic lips similar to the human vocal cords and nasal air cavities. This air is supplied to the many nasal complexes from the lungs by the palatopharynge...

21 pilot whales stranded in the Isles of Skye injured on the Reykjanes Ridge

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June 01, 2015: The pod was first spotted at 4.40 pm on Monday (June 1st) off the coast near the city of Staffin, which is situated on Scotland's Isle of Skye. Mike Merritt took a picture of the pod. lost pilot whales spyhopping trying to determine her location Notice that the pod is not swimming in any direction, or diving and feeding. They are sort of drifting along in a relatively calm sea. One whale can be seen raising his head out of the water trying to see what's going on around and near the pod. This is called spyhopping and is strong indication that the pod has no acoustic sense of direction. The loss of their biosonar was most likely due to a previous barotraumatic sinus injury caused by exposure to seismic waves above the epicenter of an earthquake along the Reykjanes Ridge ( see below). Spyhopping behavior is common in pilot whales prior to beaching themselves ( link ). They are obviously trying to see a way out of the jam they are in. The weath...