Elephant Morphometrics and Tusk Size

Each row represent an individual elephant (no repeated measurements) with a sigle measurement each of shoulder height, total tusk length, tusk circumference at lip, age in years, and sampling period lumped into 2 categories. The column titles are clear and a detailed description can be found in the methods section of the manuscript每一行对应一头独立的大象（无重复测量数据），各包含肩高、象牙总长、唇部处象牙围度、以年为单位的年龄以及被划分为两类的采样时段共五项单次测量指标。列标题清晰明了，详细的数据集描述可参见该手稿的方法学章节。