clayton: jack hannah is at the columbus zoo. hino getting his teeth brushed do rhinos need to get their teeth brushed, jack? >> oh, yeah. they have breath, too, like you do. it helps keep their teeth cleaned along with the proper food they eat. gretchen: let's talk about that gorgeous creature behind you. well, two. but the baby elephant. >> we're very proud of this birth. only two asian elephants have been born in the past six years as far as about nine -- i'm sorry. six have been born. we have two of them born here at the columbus zoo. this is a little male elephant. the asian elephant in the wild, when i came here in 1978, there were about maybe 300,000, 400,000 asian elephants. today there's anywhere from 35,000 to 40,000. can you imagine that? the largest land annual in the world. steve: i heard some story out of boston that somebody had said unless we get enough money to pay for our zoo animals, we're going to have to wind up getting rid of them. it sounded very ominous. that is a trend with diminishing revenue as cross the