Articles
The Echidna Tachyglossus aculeatus Combines REM and Non-REM Aspects in a Single Sleep State: Implications for the Evolution of Sleep
J. M. Siegel, P. R. Manger, R. Nienhuis, H. M. Fahringer and J. D. Pettigrew
Journal of Neuroscience 15 May 1996, 16 (10) 3500-3506; https://doi.org/10.1523/JNEUROSCI.16-10-03500.1996
