What Felines Do When They Leave the House

Free Documentary - Nature ·Dec 3, 2025

This cat documentary video delves into the secret lives of domestic cats when they roam beyond the confines of their homes. With a focus on cats in Weimar, Germany, the film explores their nocturnal adventures using modern tracking technology. Behavioral scientist Dunya Tison Musa leads an experiment using specialized GPS collars to study the movements and behaviors of cats, providing insights into their territorial habits and interactions. The study particularly examines variations in behavior based on age, gender and other factors.


The research takes place in Weimar, known for its large population of cats, making it an ideal location for the study. The park along the Ilm River serves as the central research area, offering diverse terrain for the cats to explore and hunt. Dunya Tison Musa collaborates with Axel Poyket, a local veterinarian familiar with the area and some of the study's feline participants. The documentary highlights how cats navigate these spaces, with some demonstrating unexpected behaviors such as crossing busy streets or expanding into larger territories.


Throughout the five-day study, Dunya Tison Musa observes 10 cats, each fitted with a GPS collar that tracks their movements. The collars are designed to be lightweight and comfortable, enabling cats to roam naturally without altering their behavior. The study includes a diverse selection of cats by age and temperament, giving Dunya Tison Musa and her team a broad spectrum of behaviors to analyze. By reconstructing the movement data, they notice intriguing patterns in how cats monitor and respond to each other’s territories.


The cats' escapades reveal their dual nature as both domesticated pets and independent hunters. The documentary sheds light on the distance cats can travel and how they interact with their environment and other cats. Some cats such as Lottie adeptly scent-mark and defend their territories while others, including Henning, venture farther than expected, challenging assumptions about their timidness. These observations open up discussions about the natural behaviors that remain consistent despite domestication.


The study also involves examining the health and physical conditions of the cats, noting signs of past injuries and health concerns such as swollen lymph nodes. Dunya Tison Musa integrates positive reinforcement, using treats to help cats acclimate to the collars, ensuring that their natural behaviors are not disrupted. Among the findings, one owner's account highlights their cat managing to hunt 50 to 60 mice in a year, showcasing their efficient hunting skills.


This insightful cat documentary video concludes by revealing the complexity of cats' lives and their adaptability to urban environments and their innate instincts. Dunya Tison Musa's research opens an avenue for further exploration into feline behaviors, emphasizing the need for more comprehensive studies. The documentary not only unravels the adventurous lives of these enigmatic creatures but deepens the understanding of their roles in the human world, much like their historical and cultural significance.


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