Often a new species is discovered which is thought to be rare and hence placed on the endangered species list. Later, after much research, it is discovered that early investigations were incomplete and in fact the species is thriving.
許多物種在被發現初期，常被認為是稀有種，列入保護後，研究多了才發現只是過去調查不夠全面，族群仍然旺盛。