Indus river dolphin can only live in freshwater. 印度河豚只能存活于淡水中
Those that reach the top can now prepare to breed. 抵达瀑布顶端的虾虎鱼现在可以准备繁殖了
but for those that do, there can be great rewards. 但风险越高 收益越高
Now the pack can regain lost ground. 现在 野犬夺回了优势
they can power their way through the water. 能够在水中大步向前
On dry land, the dogs can run at over 40mph. 在陆地上 非洲野犬能以每小时60公里以上的速度奔驰
But there is one thing he can do to protect them. 但雄性水雉还有一种手段来保护雏鸟
She and her partner can now finally mate... 现在雌性树蛙终于可以与伴侣结合