꾸러미:
world.birds.life
다운로드:
100
크기:
10 MB
지원되는 android 버전:
4.0.3 이상
업데이트 날짜:
2019년11월14일
Birds have evolved numerous adaptations for flight, including wings, powerful muscles, hollow bones, and, most distinctively, feathers. They are a group of endothermic vertebrates, characterized by feathers, a beak with no teeth, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a lightweight but strong skeleton. Birds live worldwide.
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