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HAKAI MAGAZINE Skip to content COASTAL SCIENCE AND SOCIETIES MAIN NAVIGATION AND SEARCH MAIN NAVIGATION * Features * News & Views * Quick Reads * Videos & Visuals SEARCH Search Search OTHER WAYS TO ENGAGE WITH HAKAI MAGAZINE * Youtube * Twitter * Facebook * Sign up for a weekly newsletter * RSS feed * Audio edition menu * Home * Features * News & Views * Quick Reads * subnavVideos & Visuals * About Us * Internships * Contact Us * Audio Edition * Submission Guidelines * Privacy Policy * Reprint Our Stories Search Search OTHER WAYS TO ENGAGE WITH HAKAI MAGAZINE * Youtube * Twitter * Facebook * Sign up for a weekly newsletter * RSS feed * Audio edition Brown hyenas love to go hunting in Baker’s Bay, Namibia. Photo by Marie Lemerle ARTIFICIAL INTELLIGENCE COULD SOON TURN ANYONE INTO AN EXPERT TRACKER SCIENTISTS ARE WORKING ON A MACHINE LEARNING TOOL THAT COULD, ONE DAY, IDENTIFY INDIVIDUAL ANIMALS FROM PHOTOGRAPHS OF THEIR FOOTPRINTS. AUTHORED BY by Ryan Truscott WORDCOUNT August 12, 2024 | 750 words, about 3 minutes SHARE * * * * * * ARTICLE BODY COPY 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. These roughly one-meter-long mammals—more closely related to mongooses than dogs—live in small clans but often travel and hunt alone. They roam mainly at night and tend to skirt even the most cunningly placed camera traps. That’s if, like the hyena cubs that devoured the pair of cameras hyena researcher Marie Lemerle had positioned outside their den, they don’t destroy them outright. “They managed to open the metal case and then chewed on the camera, so even the SD card was finished,” says Lemerle, a researcher with the Brown Hyena Research Project. So when staff from the US-based nonprofit WildTrack reached out earlier this year to find out if Lemerle would be interested in collaborating on the development of a new automated hyena identification system, she was enthused. Zoe Jewell, a British conservationist, has spent the past 13 years helping WildTrack develop an artificial intelligence–powered system to identify animals from pictures of their footprints. The work was inspired by Jewell’s experiences working alongside Zimbabweans tracking black rhinoceroses. So far, the AI tool can identify 17 animals, including leopards, lions, and rhinos. But the WildTrack team’s goal is to produce more fine-grained assessments—teaching their machine learning system to identify which individual animal left which print. So, for the past five months, Lemerle has been building up a reference library of hyena tracks for WildTrack’s training data sets. Each time she finds a clear hyena footprint at Baker’s Bay, a breeding ground for Cape fur seals on Namibia’s Atlantic coast where brown hyenas come to hunt, Lemerle reaches for the 30-centimeter ruler in her backpack, lays it on the sand beside the print, and takes a photograph with her smartphone. Then, the WildTrack team, headquartered at North Carolina’s Duke University, analyzes the footprint’s size and shape in intricate detail. 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. Like Hunger Games tributes trying to reach the Cornucopia, brown hyenas wanting to reach the seal colony in Baker’s Bay during daylight hours have to run a gauntlet of other hyenas and mobs of black-backed jackals intent on stealing their prey. They receive grisly injuries: shredded ears, gashed necks, and occasionally a severed foot. Some hyenas limp with broken legs. “If each individual has a different limp, that probably has to show somehow on their tracks,” Lemerle says. The AI-powered tool should, one day, be a huge complement to more traditional study methods, Lemerle adds. “It would be very nice in the early morning if I take photos of the tracks and see who was there,” she says. The tool, says Jewell, should give Lemerle a better idea of where individual hyenas are going and how they’re using their environment without necessarily having to see them. Wesley Gush, a graduate student at the University of Pretoria in South Africa who was not involved in the research, has studied brown hyenas using camera traps at the Bubye Valley Conservancy, a vast wildlife reserve in southern Zimbabwe. “Brown hyenas are one of Africa’s more cryptic large carnivores,” Gush says, adding that their elusive nature often belies their true numbers. “The development of an automated tool would have significant potential for assisting wildlife researchers and managers,” he says. “It would be amazing if it works.” Beyond aiding field researchers, the team at WildTrack hopes the system will help protect wild brown hyenas and other imperiled species. Fewer than 3,000 adult brown hyenas reside in Namibia, out of less than 10,000 across southern Africa. The animals are considered near threatened, with the species suffering from collisions with vehicles and revenge killings by livestock farmers. Jewell says WildTrack’s machine learning system and associated smartphone app could be used, for example, to prove that tracks found near farms aren’t those of a brown hyena, which could reduce the number of retaliatory attacks. “The model that we develop for [Lemerle] could be used anywhere to help protect brown hyenas,” says Jewell. “That’s the hope.” ARTICLE FOOTER AND BOTTOM MATTER ADDITIONAL CONTRIBUTORS Edited by Colin Schultz SHARE * * * * * * SIGN UP FOR THE WEEKLY NEWSLSTTER SIGN UP FOR OUR FREE WEEKLY NEWSLETTER Email Address spam catch subscribe CITE THIS ARTICLE: Cite this Article: Ryan Truscott “Artificial Intelligence Could Soon Turn Anyone into an Expert Tracker,” Hakai Magazine, Aug 12, 2024, accessed August 12th, 2024, https://hakaimagazine.com/news/artificial-intelligence-could-soon-turn-anyone-into-an-expert-tracker/. -------------------------------------------------------------------------------- RELATED CONTENT BEAR-DAR WARNS OF APPROACHING POLAR BEARS RESEARCHERS ARE DEVELOPING AN ARTIFICIAL INTELLIGENCE–POWERED RADAR SYSTEM TO REDUCE POLAR BEAR-HUMAN CONFLICTS. Apr 20, 2022 | 800 words, about 4 minutes FACIAL RECOGNITION—NOW FOR SEALS A NEURAL NETWORK, TRAINED USING THOUSANDS OF PHOTOS OF HARBOR SEALS, OFFERS A NONINVASIVE WAY OF TELLING SEALS APART. Jun 29, 2022 | 600 words, about 3 minutes -------------------------------------------------------------------------------- RELATED TOPICS * Environments * Living Things * Africa * Atlantic Ocean * Terrestrial Mammals COPYRIGHT INFORMATION Made next to the 🌊 in Victoria, Canada - ISSN 2371-5790 Part of the Tula Foundation and Hakai Institute family. LINKS TO HAKAI MAGAZINE SOCIAL MEDIA SITES * Youtube * Twitter * Facebook * Sign up for a weekly newsletter * RSS feed * Audio edition LINKS TO SUPPORTING PAGES AND INFORMATION About Us Internships Contact Us Submission Guidelines Privacy Policy Reprint Our Stories