When elephants retire, many head for the Elephant Sanctuary in Hohenwald, Tenn. They arrive one by one, but they tend to live out their lives two-by-two. Every elephant that comes here searches out someone that she then spends most all of her time with," says sanctuary co-founder Carol Buckley. It's like having a best girlfriend, Buckley says - "Somebody they can relate to, they have something in common with." Debbie has Ronnie. Misty can't live without Dulary. Those are pachyderm-pachyderm pairs. But perhaps the closest friends of all are Tarra and Bella. That would be Tarra the 8,700 pound Asian elephant. And Bella. The dog. "This is her friend," Buckley says. "Her friend just happens to be a dog and not an elephant. Bella knows she's not an elephant. Tarra knows she's not a dog. But that's not a problem for them." Bella is one of more than a dozen stray dogs that have found a home at the sanctuary. Most want nothing to do with the elephants and vice versa. But not this odd couple. "When it's time to eat they both eat together. They drink together. They sleep together. They play together," Buckley says. Bella even lets Tarra pet her tummy - with the bottom of her enormous foot. They harbor no fears, no secrets, no prejudices. Just two living creatures who somehow managed to look past their immense differences. Take good look at this couple, America. Take a good look world. If they can do it - what's our excuse?