Zoos compiling vocal footprints to track, count wild tigers

Several zoos are working on the Prusten Project in an effort to develop better tools for measuring wild tiger populations. Zoo staff are recording tiger vocalizations and using software to translate those sounds into a visual spectrogram that can be used to identify an individual tiger, although females lend themselves to individual identification more than males. Researchers plan to take the technology to India and Sumatra to monitor wild populations. Milwaukee Journal Sentinel (tiered subscription model) (3/14)

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