The older male eventually begins to gain the upper hand. 年长的雄羚羊最终开始占据上风
With long limbs and a prehensile tail that can grip like a hand, 修长的四肢加上灵活如手的卷尾
Scavengers on the other hand, have to move around to find their food. 食腐类动物则需要到处寻找食物
A dozen share this tree hole, but there's plenty of room. The world's smallest primate is no bigger than your hand. 12只鼠狐猴同居此洞.对于这种巴掌大小 世界上最小的灵长动物来说,空间足够了
The wonderpus octopus on the other hand has such a powerful bite that it has a special warning display to tell others to keep out of it's way. 拟态章鱼用强有力的触手 摆出特别的姿势警告其他动物远离此地
Since parasites like these stop any one group of animal getting the upper hand. 这种寄生虫能阻止某种生物种群的优势
Each piglet may be small enough to fit in the palm of a hand, 每一只小猪都小得可以放在手掌心上