Palm Cockatoos are the rockstars of the bird world, but are their drumming displays an ancient instinct or a clever mimicry of human behaviour? Rob Heinsohn and Christina Zdenek report
Fredericksburg Civil Rights Trail joins national collection of landmarks augustafreepress.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from augustafreepress.com Daily Mail and Mail on Sunday newspapers.