More than 160 pilot whales became stranded off the coast of Western Australia on Thursday, local authorities said. Western Australia’s parks and wildlife authority DBCA said the whales became stranded in shallow waters near the small town of Dunsborough, some 250 kilometres south of Perth. By midday, 26 animals had died, Australian broadcaster ABC quoted a DBCA spokeswoman as saying. Volunteers were feverishly trying to keep 140 more whales alive, the report said. “Based on previous strandings involving this species of whale, such as at Cheynes Beach near Albany last year, these events usually…