Did you know giraffes sleep only 30 minutes a day? Find out why this African mystery fascinates scientists — and imagine what it would be like to sleep standing up!
Africa’s Amazing MysteriesEpisode 1: Why do giraffes sleep so little?
Did you know giraffes sleep only 30 minutes a day? Find out why this African mystery fascinates scientists — and imagine what it would be like to sleep standing up!
