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The challenge of monitoring elusive large carnivores: An accurate and cost-effective tool to identify and sex pumas (Puma concolor) from footprints

Fig 4

A puma footprint showing the placement of 25 landmark points (red circles) and 15 points derived from them and generated by the FIT script (yellow circles).

The landmark points and derived points are numbered in one sequence, providing 40 total points from which measurements (variables) of the footprint are made.

Fig 4

doi: https://doi.org/10.1371/journal.pone.0172065.g004