许多地区的动植物种类曾比现在丰富，使得它们非常适合人类居住。
Many areas were richer in animal and plant species than they are now, making them highly favorable for human occupation.
亚马逊雨林是地球上动植物种类最多的地方。
The Amazon rain forest is home to the highest number of plant and animal species (种类) on Earth.
该地区动植物种类繁多，其中最有名的是皇家孟加拉虎。
The area supports a wide range of fauna, the most famous of which is the Royal Bengal tiger.
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