like many of our animal friends today, they do face challenges of loss of habitat. are you brave enough to pet? let's give it a try. you don't pull but you can pet. notice how smooth. >> coming over here. >> not even looking at you. >> not even looking at me. >> not even looking at you. very smooth. you are right. earlier that the iguana was rough and you ask why is this smoother, no legs, no arms. the iguana can walk through its environment fine. these guys rely on being nice and smooth to go with minimal friction. >> rick, i can't thank you enough for bringing all of your friends. >> my pleasure. thank you for having us. >> thank you for making me look like a cool, calm collected anchor through all of this. >> you totally got it. zookeeper rick from the san diego zoo. >> for more information on their conservation initiative and to learn more about these animals, go to the sandiegozoo.org. you are watching "world news now." conservation initiative and to learn more about these animals, go to the sandiegozoo.org. you are watching "world news now."