Juvenile humpback was spotted near Bundjalung national park in what experts say is a rare but not unprecedented eventGet our breaking news email, free app or daily news podcastWhile the case of a whale found 11km upstream in a New South Wales river this weekend was unusual, it was not unprecedented, experts say.The juvenile humpback, which swam into the Clarence River on the state’s mid-north coast and later died, was towed out to sea on Sunday, according to NSW authorities. Continue reading…