A dead porpoise, suspected to have been carrying a stillborn calf, was discovered in Hong Kong waters on Tuesday. The mammal was spotted by boat captain Vincent Tong Chi-kin in the waters near Ap Chau on Tuesday morning, while his vessel was conducting coastal cleaning for the Food and Environmental Hygiene Department. “We spotted a grey-black object when steering from Lai Chi Wo to Ap Chau. It turned out to be the body of a mammal when we got close,” he said. He added that the six-foot (1.8...