This easterly decline in species diversity is well demonstrated by birds and coralfish.
鸟类和珊瑚鱼很好地证明了东部物种多样性的退化。
2
The author mentions the estimated numbers of birds and coralfish species on various Oceanic islands in order to demonstrate how much knowledge about Oceanic species has been accumulated.
作者提到了各种海洋岛屿上鸟类和珊瑚鱼物种的预估数量,以显示已经积累了多少关于海洋物种的知识。
3
Fish remember the smell of the stream where they hatched, and coralfish also have a smell memory of the reef where they came from.