Trees are not as sound asleep as you may think

(Aarhus University) High-precision three-dimensional surveying of 21 different species of trees has revealed a yet unknown cycle of subtle canopy movement during the night. The 'sleep cycles' differed from one species to another. Detection of anomalies in overnight movement could become a future diagnostic tool to reveal stress or disease in crops.
Source: EurekAlert! - Biology - Category: Biology Source Type: news