Mukhametov L M, Lyamin O I, Polyakova I G
Experientia. 1985 Aug 15;41(8):1034-5. doi: 10.1007/BF01952128.
In northern fur seals the two brain hemispheres can generate the EEG slow waves during sleep not only simultaneously, as in all the terrestrial mammals investigated, but also independently as in dolphins.
在北海狗中,两个脑半球在睡眠期间不仅能像所有已研究的陆生哺乳动物那样同时产生脑电图慢波,还能像海豚那样独立产生。