Many experiments in biology-from parenting mice to fish schooling-require measuring interactions among multiple individuals. For the computational analysis of fine-grained behavior, pose estimation is often a crucial step and deep-learning based tools have quickly affected neuroscience, ethology and medicine 5, 6, 7, 8. Computer vision is a crucial tool for identifying, counting, as well as annotating animal behavior 2, 3, 4. Advances in sensor and transmitter technology, data mining and computational analysis herald a golden age of animal tracking across the globe 1.
