An ancestral species might have adapted to exploit a particular ecological niche on one island and then traveled over water to colonize other islands.
一个原始物种可能已经适应了利用一个岛屿上特定的生态位，然后在水上迁徙到其他岛屿定居。
2
To create an image of Manhattan four centuries ago, they took the island back to its ecological fundamentals, back to the bedrock and surface topology.