Paw print, or pugmark, tracing is another common technique for counting tigers.
爪印和老虎足迹同样是常用计算老虎数量方法。
Paw print, or pugmark, tracing is another common technique for counting tigers.
爪印和老虎足迹同样是常用计算老虎数量方法。
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.
研究人员用这些照量老虎印长度和宽度趾之间角度,10种其他变量确定不同老虎“身份”。
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