0nly grass can feed plagues of these proportions. 只有草才能满足这些鸟的胃口
This single feed will sustain the chicks for a few more days, 就这一口吃的可以让小企鹅多存活几天
Unable to feed, this bear will not survive. 找不到食物,这只熊将无法活下来
and 24 hours of daylight allow animals to feed around the clock. 一天24小时都是白昼 动物可以24小时觅食
and, when day breaks, a rare chance to feed. 而且到了白天还有难得的进食机会
The cave angel fish feed on bacteria in the fast flowing water 洞穴天使鱼以急流中的细菌为食
There's no food and few insects to feed on. 这里没有食物 可以吃的昆虫也很少
That is where she hunts for the seal she needs to feed her cubs. 而母熊则需要在那里捕杀海豹 喂养幼熊