Burung ini tidur sambil terbang
Frigatebirds fly for many days and sleep only a little.
Before you read
Before you read
Seekor burung fregat bisa terbang selama berhari-hari. Burung itu terbang di atas laut terbuka. Burung itu tidak bisa mendarat di air. Jadi kapan burung itu tidur?
Ilmuwan memasang alat kecil di burung-burung itu. Burung-burung itu terbang sampai sepuluh hari. Mereka tidur sambil terbang. Setengah otak tidur. Satu mata tetap terbuka.
Ini mengejutkan. Di laut, burung tidur hanya empat puluh menit sehari. Di darat, mereka tidur lebih dari dua belas jam. Mereka banyak beristirahat di rumah.
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