Time for a nap? Chinstrap penguins survive on 10,000 microsleeps a day - ヒゲペンギン、1日細切れに数千回眠る

Penguins are sleeping only seconds at a time - but thousands of times a day - according to a new study published in the journal Science. Researchers say chinstrap penguins, who look like they're wearing helmets, have adapted their sleep pattern to their high-stress environment. - 米科学誌サイエンスに掲載された新しい研究で、ヒゲペンギンの親の繁殖期の睡眠は1回平均4秒、1日数千回ということが明らかになりました。