Sea Levels
Different ecologies on neighboring islands denote recent depopulation. Huge waves crossed the Pacific about 3,540 yrs. ago, as explained in Chapters 4 & 10. Once again, islands would be repopulated randomly.
![Sea-Levels](https://martiangrandpa.com/wp-content/uploads/2023/05/Sea-Levels.jpg)
Many low islands were completely depopulated about 3,540 years ago. Others would become populated after seal levels dropped 20 ft. at that time. Read about it at martiangrandpa.com.