Definition
"Cervus sika" is an older, less common scientific designation for the sika deer. Now, the accepted scientific name is "Cervus nippon." You can think of it as an outdated version or a synonym in some older texts. The 'sika' part comes directly from the Japanese word for deer. This name illustrates the evolution of scientific classification. Scientists refine their understanding of species over time. The older name might still appear in some resources.