Primate's best friend
![In Rajasthan, India, Hanuman langurs groom a feral dog](/sites/default/files/styles/sierra_full_page_width/public/2023-12/LW_01-1_0.jpg.webp?itok=qKfgI0dO)
Photo by Cyril Ruoso/JH Editorial/MINDEN PICTURES
"You become responsible, forever, for what you have tamed." — Antoine de Saint-Exupery, The Little Prince
In Rajasthan, India, Hanuman langurs groom a feral dog. Primates use grooming to form social bonds, and langurs often extend the courtesy to other species. Though they're sacred in India, Hanumans (named after a Hindu god) are decreasing in number because of habitat loss.