LifeBirds 'dream sing' by moving their vocal muscles in their sleep Zebra finches sing during the day, and at night while they sleep their vocal organs act out the motions of singing, a bit like a sleepwalking person 51¶¯Âþ
TechnologyAlgorithms that change lives should be trialled like new drugs An algorithm used by US courts to predict reoffenders turns out to be no more accurate than random people on the internet. Why wasn’t it properly tested before now? Analysis