这批浅色双锯鱼的幼鱼稳稳撑住,对抗水流。
葡萄牙,亚速尔群岛附近,在阳光照耀的大西洋海面下,一群抹香鲸垂直漂浮着歇息。科学家认为,,“漂移潜水”是一种公共沉睡的形式。这个物种可能睡眠最少的哺乳动物。
斯开岛,特洛登尼许半岛 玄武岩尖塔俯视着拉榭海峡。这些小岩塔式古代山崩后留下的遗迹,曾经目睹塑造出这片地域的地质剧变。
At a breeding facility in Indonesia, baby green tree pythons (Morelia viridis) cling to perches that substitute for branches in their native tropical forests. Seen here at about eight inches long, each snake will grow to several feet and will likely turn a shade of green―though a few retain their yellow hue or even change dramatically to colors such as sky blue. For snake collectors around the world, captive-bred animals offer a sustainable alternative to those taken from the wild.
Tangles of seaweed lure a flock of sheep from Iona's green slopes down to the beach for a mineral-rich graze. In Gaelic this stretch of coast is called Camas Cùil an t-Sàimh, the "bay at the back of the ocean."
这只雄性的白条海葵鱼像园丁一样照料发育中的一片受精卵,并铲掉已死的胚体。它会扇动胸鳍,供氧给受精卵。
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