TechnologyBack to black: The enduring quest to portray nothing A painting of a black square shown in Russia 100 years ago broke new ground, now revisited by an exhibition in London and a carbon nanotube take on the original CultureLab
LifeWhaleworld: Looking for cetacean culture Orca clan calls and dolphin "tail-walking" provide clues to cetacean culture, find Hal Whitehead and Luke Rendell in The Cultural Lives of Whales and DolphinsCultureLab