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Chaser with Neil Degrasse Tyson on ABC Television

Dr. John Pilley felt sad. For many years, he worked with Yasha. He worked with Yasha as a scientist, but they were also best friends. As time passed, Yasha became very sick. Dr. Pilley tried to help Yasha, but Yasha didn?t get better. Then it happened. Yasha died, and Dr. Pilley cried and cried. For 16 years, he worked, studied, and played with Yasha, but 16 years is old for a dog. After Yasha?s death, Dr. Pilley decided to nev...