Besides this aggressive interaction with a free-ranging animal, a captive pilot whale was reported to progressively initiate more violent attacks on humans entering its tank. here.).The woman survived this life-threatening attack. The scenario was filmed underwater and can be viewed on YouTube (. On April 24, a whale-watching vessel spotted Frosty along with six other orcas around 8 miles (13 kilometers) off the coast of Malibu, according to Newsweek. Finally, the swimmer was brought back to the water surface. Seconds later the human swimmer was drowned to 40 feet below the surface. During the encounter one whale dramatically changed its behavior and finally attacked the swimmer by opening its mouth and grabing the swimmer's inner left thigh. In May 1992 a swimmer entered waters south off Hawaii and swam with a group of short-finned pilot whales. (table reproduced from Fernndez, A., Espern, F., Herraz P. for an overview of video examples of interactive behaviors addressed towards human swimmers Table 1: Pilot whale strandings, historical and epizootic, Mediterranean coastal area. Though nearly all behaviors seemed to be affiliative and curious (e.g.here.), other researchers observed aggressive behaviors directed towards human swimmers (e.g. here.) revealed a variety of 11 interactive behaviors initiated by free-ranging pilot whales and directed towards human swimmers. Several times the whales echolocate towards the swimmer. to see a group of short-finned pilot whales underwater in close range to the swimmer (.mov file with 7.2 MB). The whale emits unusual vocalizations and seems to be very excited.Ĭlick. to see a spectacular in-water interaction with a single pilot whale (.mov file with 6.3 MB). to hear click trains directed towards a human swimmer (.mp3 file with 0.25 MB)Ĭlick. to see some of these behaviors on video.Ĭlick. during the curious behavior 'encircling' mostly one or two pilot whale/s swim/s around a swimmer in circles at the water surface for several times. Short-finned pilot whales show aggressive as well as passive and curious behaviors in the presence of human swimmers. Short-finned pilot whale encounters with human swimmersĭuring human-dolphin in-water encounters, dolphins initiate a variety of behaviors which are directed towards human swimmers.
0 Comments
Leave a Reply. |