https://www.biographic.com/charting-a-course-through-bears-eyes/
"To develop a more realistic picture of how bears crisscross their territory, Housty and other Heiltsuk stewards recently partnered with academics to construct their own model of bear navigation. Their tool, which is based on a technique borrowed from electrical engineering called circuit theory and has been adapted for use in landscape ecology, gives them a way to calculate the “least cost” pathways that the bears might take to navigate the complex and densely packed forest between salmon streams.



