Nola, a critically endangered 40-year-old northern white rhino, received some pampering and a pedicure earlier today at the San Diego Zoo Safari Park. While keepers Jane Kennedy and Mary Weber-Evans gave Nola a rub down and scratched her ears, keeper Ken McCaffree trimmed the 4,000-pound rhino’s nails. The elderly Nola, who was under veterinary care for a sinus infection until recently, is feeling much better and seems to enjoy the extra-special care by her keepers.   [caption id="attachment_112923" align="aligncenter" width="1024"] While keepers Jane Kennedy and Mary Weber-Evans gave Nola a rub down and scratched her ears, keeper Ken McCaffree trimmed the 4,000-pound rhino’s nails. The elderly Nola, who was under veterinary care for a sinus infection until recently, is feeling much better and seems to enjoy the extra-special care by her keepers.[/caption] Most rhinos wear their nails down just by walking, but Nola’s nails grow at a particularly fast rate. To provide optimal health, keepers provide Nola with nail trims about every three weeks. She is the only rhino at the Safari Park who receives pedicures. Keepers use the same type of tools to trim Nola’s nails as are used to trim horses’ hooves. Most pedicure sessions last about 30 minutes, but keepers work as long as Nola will allow. When Nola is done, she lets the keepers know by standing up and walking away. Nola is one of just five northern white rhinos left in the world. Three other northern white rhinos are in the Ol Pejeta Conservancy in Kenya and one is in the Dvur Kralove Zoo in the Czech Republic. The five remaining rhinos are all of an advanced age and have not reproduced. Poaching for its horn has brought the northern white rhino to such critically low numbers. Photo taken on Feb. 19 by Ken Bohn, San Diego Zoo Safari Park.