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UK Team Builds Robot Fish to Detect Pollution

Robot fish developed by British scientists are to be released into the sea off north Spain to detect pollution. The team hopes to use the five-foot-long robotic fish to find pollution in rivers, lakes and seas across the world.

Aussies Petition Their Government, Secure Historic Marine Protection for Coral Sea

Pushed by a chorus of 486,900 citizens, the Australian government announced Thursday their intention to create the world's largest marine reserve, a highly protected zone in the Coral Sea stretching almost 200,000 square miles -- a historic moment for ocean conservation in Australia and globally. Australia's Coral Sea, east of the Great Barrier Reef, is one of the last remaining intact tropical ocean ecosystems in the world where populations of large ocean predators - sharks, tunas, and marlin - have not been severely reduced. The waters are home to healthy coral reefs, atolls, cays, and islands that provide shelter to reef fish, sea turtles, and seabirds.

Salmon in East Vancouver? Miraculous Reappearance After 80 Years

Chum salmon are spawning again at an urban creek in the heart of East Vancouver. The salmon returned this week to Still Creek, which sits in a ravine surrounded by warehouses and was once thoroughly polluted by urban garbage, sewage and toxic chemicals. Much of the credit goes to people who have painstakingly restored their habitat.