<p><br /> Dozens of biologists and environmental activists have rescued two freshwater dolphins after they became trapped in a river with low water levels.<br /> </p><p><br /> The two were among nine dolphins that have been stranded in the river for more than a month. The two dolphins were caught in nets and brought to shore on Sunday.<br /> </p><p><br /> They were put in padded, water-filled aluminium containers and driven about two miles downstream, where they were put in a pen in deeper water.<br /> </p><p><br /> Mariana Escobar, a biologist at the Noel Kempff Centre, said the dolphins had not been hurt and were breathing normally. The team kept the dolphins' skin damp by wrapping them in wet towels.<br /> </p><p><br /> The two rescued dolphins will be kept in the pen until they could be reunited with the other seven, according to a member of the rescue team. The operation manager estimated it will take two or three more days to round up all of the dolphins.<br /> </p><p><br /> The nine dolphins were trapped in early July in a tributary of the Rio Grande, north of the city of Santa Cruz, when drought caused water levels to drop.<br /> </p>
