
Seals only sleep with half their brain when they're out at sea
7 June 2018
Northern fur seals mostly sleep with half their brain while they’re at sea, but sleep with all their brain while on land – unlike any other animal studied

7 June 2018
Northern fur seals mostly sleep with half their brain while they’re at sea, but sleep with all their brain while on land – unlike any other animal studied

21 March 2018
Dreams play a key role in boosting creative thought, memory, learning and even mental health. Now modern life may be cutting them short, with serious consequences

21 March 2018
Having more dreams each night could be key to mental well-being. Here’s what to do – and what to avoid – if you want to increase your dose

9 February 2018
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