Prosthetic paws for sloth bears

Prosthetic paws for sloth bears

Sloth bears are fascinating wild animals native to the Indian subcontinent. Recognised by their shaggy black coats, long curved claws and distinctive white markings on their chests, these bears play an important role in maintaining healthy forest ecosystems. Yet many sloth bears have suffered severe injuries, particularly to their paws, because of human activities, accidents and cruel practices. The development of prosthetic paws and other assistive devices offers hope for injured bears, helping them regain mobility and enjoy a better quality of life.

Why Do Sloth Bears Need Prosthetic Paws?

Sloth bears use their powerful forelimbs and long claws to dig for termites, uncover insects, break into rotting logs and search for food. Their paws are essential for climbing, digging and moving across different types of terrain.

Unfortunately, some bears suffer injuries that permanently damage their paws or limbs. Snare traps, road accidents and other encounters with human-made hazards can cause serious wounds. Historically, sloth bears were also exploited in the cruel practice of dancing bears, in which handlers pierced their sensitive muzzles and used ropes to control them. Although this practice has been prohibited in India, rescued bears may still require lifelong care for injuries and disabilities caused by past abuse.

When a bear loses part of a paw or suffers significant damage to a limb, walking and performing everyday activities can become difficult. Specially designed prosthetic devices may help certain animals, depending on the location and severity of their injuries.

Vasi: The Sloth Bear Who Made History

Vasi the Sloth Bear Makes History with First-of-Its-Kind Prosthetic Leg After Surviving Snare Trap Injury - AOL

One of the most remarkable examples of this innovation is Vasikaran, affectionately known as Vasi, a rescued sloth bear at the Bannerghatta Bear Rescue Centre near Bengaluru, Karnataka.

Vasi was rescued in 2019 after a wire snare trap severely injured his left hind paw. Despite emergency treatment, the injury was too serious to save the limb, and it had to be amputated. He gradually adapted to walking on three legs, but this placed additional strain on his body.

In January 2025, animal orthotist Derrick Campana worked with Wildlife SOS, Bannerghatta Biological Park and the Karnataka Forest Department to develop a specially designed prosthetic limb for Vasi. The achievement was reported as the world's first prosthetic limb fitted to a sloth bear.

The team carefully moulded and adjusted the device to suit Vasi's needs. Caregivers also helped him become comfortable with the sensation of having something attached to his injured limb. Once the prosthetic was fitted, he began placing weight on all four limbs and moving more confidently.

The device was designed to support natural bear activities such as digging, climbing and foraging. This breakthrough demonstrates how veterinary expertise, engineering and patient rehabilitation can work together to improve an animal's welfare.

Challenges and the Road Ahead

Designing prosthetics for wild animals is not easy. A device must fit comfortably, withstand considerable physical pressure and avoid damaging the remaining limb. Wildlife specialists must monitor the animal for irritation, infection, changes in movement and signs of discomfort.

Prosthetics are not suitable for every injured bear. Each case requires careful veterinary assessment, and some animals may do better with other forms of treatment, adapted habitats and lifelong supportive care.

Conclusion

The story of Vasi is a powerful example of compassion supported by scientific innovation. His prosthetic paw represents more than a medical achievement: it offers hope that animals injured by human activities can still experience greater comfort, mobility and dignity.

Ultimately, however, preventing injuries remains essential. Protecting forests, removing illegal traps and supporting responsible wildlife rescue organisations can help ensure that fewer bears suffer such devastating injuries. Vasi's journey reminds us that when science and compassion come together, even a seemingly impossible challenge can lead to a new beginning.

By Jamuna Rangachari