OF ALL the patterns in nature, one of the simplest, yet hardest to unpick, is that the further you travel from the tropics, the fewer species there are.
OF ALL the patterns in nature, one of the simplest, yet hardest to unpick, is that the further you travel from the tropics, the fewer species there are.
自然界呈现出缤纷多彩的格局，其中有一种格局最简单，但也最扑朔迷离，那就是当你离开热带地区越远，那么你所能看到的物种就越少。