从美国的海岸线到世界各地的异国海滩，鲨鱼的袭击使梦想中的假期变成了噩梦。这些攻击中有许多是突然发生的，并且出现在意想不到的地方，这使当地人和科学家感到困惑。国家地理深入调查了这些神秘事件，来揭秘是什么因素影响着自然界中最…

To celebrate the centenary of the Royal Air Force, actor Ewan and former RAF pilot Colin McGregor, his brother, take to the skies in some of the world's most iconic planes. 　　It will quite an adventure as the brothers ex…