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猫小帅科普之长脖子的长颈鹿：长颈鹿的脖子，是怎么长这么长的？
陆地上谁的脖子最长呢？现在正进行着一场长脖子比赛，天鹅小姐遥遥领先，而长劲鹿的出现让天鹅小姐的冠军梦破碎了！大家都好奇长劲鹿的脖子为什么那么长呢？快来视频里找答案吧！
猫小帅十万个为什么27/100
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