Will Johnson: Have you had any personal interactions with otters?
Peter Gros: I have, and otters are amazingly intelligent animals to work with. I had the good fortune of working with the Monterey Bay Aquarium with the otters that had been caught in the Exxon Valdez spill and then were sent to the aquarium where they were cleaned up and brought back to good health and then released in the ocean in front of the aquarium. I was fortunate enough to work with the researchers as they took them out in front of the aquarium and taught them to dive, taught them to retrieve abalone again, taught them basically to become wild otters again and hopefully they would readjust to the other otters that live out there in the cove just off the coast of Monterey, California. So it was a very exciting thing to do, and having seen this show I can realize just what an amazing researcher that Carolina Vargas had to be, and the patience she had to have, to take her otters that one step further to where they were actually able to go out and mingle and hunt and make it on their own in that very competitive area in the Pantanal.

Will Johnson: Are giant otters endangered? Should we be concerned about them?
Peter Gros: Absolutely. They're amazing animals, they're a very important part of the circle of life in nature, and they should be protected. And I think the more we protect them, the better off we're all going to be.

Will Johnson: The show is called Raising Sancho. Why should people tune in for this one Peter?
Peter Gros: Well I think it's one of the most magnificently filmed underwater bits of photography I've ever seen. I've never seen otters filmed so well. It's some of the best underwater footage I think I've ever seen. It's a wonderful sort of aheartwrenching show of what it takes to hand-raise a young animal and release it back into the wild again through the devotion of this wonderful research, Carolina Vargas. So I encourage everyone to watch it Sunday, April 8, at 7 p.m. ET/PT on Animal Planet.

Will Johnson: Could you give us a quick preview before we sign off? What's one of your favorite scenes?
Peter Gros: Oh, I think my favorite scene is the young otter swimming in the water clinging to the back of his best friend, Carolina. You see this cross-species relationship between a human and an otter as the otter is learning what it's like to have to survive in the water again, and gradually become braver and braver and braver, and then head off on his own and eventually meet up with other otters.

Will Johnson: Sounds like we're in store for another great episode of Mutual of Omaha's Wild Kingdom. Thanks again Peter.