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       February 3, 2012

　

(CNN Student News) -- February 3, 2012 Dolphin Rescues AZUZ: Some scientists are trying to solve a mystery on Cape Cod. Dolphins have been getting stranded there. It`s not completely unusual. There are typically around 120 strandings per year. But more than 100 dolphins have gotten stranded since the start of January. Sometimes they`re washing 10 at a time. (BEGIN VIDEO CLIP) AZUZ (voice-over): At least 81 of these dolphins were either found dead or they died shortly after being discovered. One animal welfare group director called the number "disturbing." Now, no one`s certain what`s causing the dolphin deaths. A local harbor master says changes in water temperature could be a contributing factor. Usually the Cape Cod harbor ices over in winter, so dolphins don`t get close to shore. But the harbor master says now that the water`s warmer, more are showing up than ever before. (END VIDEO CLIP)