Country diary: North Ronaldsay, Orkney: The sheep dyke represents millions of hours of human labour, but to the fulmars it is simply the most sheltered spot to lay
GrrlScientist: This remarkable video captures some clever and determined swallows demonstrating their door-opening talents in a parking garage in Canada.
We look back at Apple's tech products, including game-changers such as the iMac and iPhone, curiosities like Lisa – and duds, like the 20th Anniversary Macintosh