An analysis based on the relationship between the species, though, shows that evolutionary lines can swap from spots to no spots, and vice versa, as the habitat dictates.
基于物种关系的一个分析表明，进化路线有时是从有斑点到无斑点，有时又反过来，这取决于栖息地在哪里。
2
Through observation and compound analysis, the principle factors of common crane winter habitat selection was identified.
通过野外对灰鹤生境的观察和综合分析，确定灰鹤冬季生境选择的影响因子。
3
Finally, the current landscape analysis of reality Habitat cases were carried out from three different aspects.