长颈鹿有着长长的腿和脖子,是动物园里最高的“巨人”了,那么长颈鹿到底有多高呢?A:长颈鹿是世界上现存的最高的陆生动物。其实,长颈鹿的祖先并不高,而是短脖子的食叶动物,它们生活在有着大量树木的森林里。然而,随着气候和环境的变化,稀树草原在非洲大陆上不断扩张,逐渐取代了森林。慢慢的,可供长颈鹿取食的低矮树木上的树叶越来越少,只有那些个子较高的长颈鹿才能吃到高大树木上的树叶。于是,生存在稀树草原上的长颈鹿为了获得更多的食物, Giraffe has long legs and neck, is the highest in the zoo “Giant ”, then how high is the giraffe in the end? A: The giraffe is the highest existing terrestrial animal in the world. In fact, giraffes are not high ancestors, but the short neck of leaf-eating animals, they live in the forest with a lot of trees. However, as the climate and environment change, savannas have been expanding on the African continent, gradually replacing forests. Slowly, there are fewer and fewer leaves on low trees for giraffes to eat, and only those tall giraffes can eat the leaves of tall trees. Thus, giraffes living in the savannah in order to get more food,