To help save the rhino from extinction, a young keeper at Kanazawa Zoo is striving to make the captive environment for the mammals as close to what their natural habitat in the wild would be.

"I hope visitors to our zoo will sense the world of wild animals and recognize their situation," Masaru Senzaki, 28, said. "I want to create such opportunities."

Senzaki takes care of two Indian rhinos at the Yokohama-run zoo — Gopon, who is now pregnant, and her partner, Kintaro. While male Indian rhinos like Kintaro weigh nearly 3 tons, they are like spoiled children in need of lots of attention, according to Senzaki.