South Korean rescuers try three times to free shark, but it swims back into canal

Bukangi has been in the North Port canal since September 18 (Reuters photo) A 10-foot endangered shark in South Korea has left authorities facing an unusual rescue problem. After spending more than a month inside a canal in the port city of Busan, the shark was finally guided towards the open sea on Wednesday. But the rescue lasted only a few hours as the animal swam underneath a barrier net and returned to the canal, forcing officials to reconsider their approach after three attempts to move it out.The female dusky shark, known locally as Bukangi, has been in the North Port canal since September 18, according to news agency Associated Press. Its presence has turned the waterfront into a popular attraction, with more than 1.7 million people visiting the area. Busan authorities have also adopted the shark as a city mascot.Officials worry about how long Bukangi can remain in the confined waterway as they have found no clear signs that it has been feeding regularly during its stay. Water temperatures are also beginning to fall, raising fears about the possible effects on its health.According to Reuters, officials have placed barriers to prevent it from travelling farther inside. The o...