The elephant's night vision is little better than our own. 大象的夜视能力只比人类稍好一点
Thirsty herds continue to arrive throughout the night. 口干舌焦的动物趁着夜色纷至沓来
The elephants dominate the water hole, but as night falls the balance of power will shift. 大象在这些水坑的控制权上占主导地位 但随着夜幕降临力量的对比将发生变化
the saguaros bloom at night to attract visitors. 弁庆柱在晚上开花 吸引了不少拜访者
But moisture, lost even at night, has to be replaced sometime somehow 可是水分在晚上也会损耗 必须在什么时候想办法补充
In the Sahara the temperature can drop as much as 30 degrees during the night, 在撒哈拉沙漠中 晚上的气温会下降整整30℃
Night feeders leave the cave each evening. 它们每天晚上出洞觅食
For these fish the caves are a night time retreat, 对于这些鱼来说 洞穴是理想的过夜场所