Spotted: Ryan Gosling's Staring Contest
Elephants, cougars and sloths are just some of the creatures the stars brushed elbows with during a special behind-the-scenes tour. The pair talked with animal keepers, learned about the zoo's conservation projects, and Gosling showed extreme bravery as he put his hand in the mouth of an Indian rhino named Nikki. Looks like he's ready for his next role as a Hollywood stuntman in Drive!
See more zoo friendly celebs on PEOPLEPets.com:
Spotted: Jack Black Meets a Baby Panda!
Kardashians: Keeping Up with Animals!