Paw print, or pugmark, tracing is another common technique for counting tigers.
爪印和老虎足迹同样是常计算老虎数量方法。
Paw print, or pugmark, tracing is another common technique for counting tigers.
爪印和老虎足迹同样是常计算老虎数量方法。
The researchers then use the pictures to measure the length and width of each pugmark, the angle between toes, and 10 other variables to establish an ID.
研究这些照片来测量老虎脚印长和宽以及脚趾之间,以及10种其他变量来确定不同老虎“身份”。
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