Scientists are working on a machine learning tool that could, one day, identify individual animals from photographs of their footprints.
ArticleBody:This article was originally featured on Hakai Magazine, an online publication about science and society in coastal ecosystems. Read more stories like this at hakaimagazine.com. Some wild animals are relatively easy to study. Certain penguin populations, for instance, are so unaccustomed to large predators that they barely fear humans and will often wander right up to scientists lurking nearby. Namibia’s brown hyenas are the opposite.
They break each print into 120 different measurements, which the machine learning software can compare with others in the database to look for a match. Sometimes, says Jewell, all they need to tell hyenas apart are subtle differences in the angles between their toes. While innate physiological differences set hyena tracks apart, so too do the scars of life.
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