The protection of Amtrak passengers is in the hands -- or should I say paws of the canine unit. CBS News Correspondent Sam Litzinger has more.

They may be on four legs, but these police officers can also get the job done. CBS News Correspondent Sam Litzinger has more on these canine cops.

Vultures are nature's sanitation workers -- and officials in Peru are taking advantage. CBS News Correspondent Sam Litzinger has more.

CBS News Correspondent Sam Litzinger discusses how pets are being trained to perform responsibilities for their owners when they get old -- like finding the remote.

CBS News Correspondent Sam Litzinger discusses how zoo animals are treated when they get to a geriatric age.

CBS News Correspondent Sam Litzinger discusses how some animals shelters are going high-tech to ensure that prospective pet parents know all about the animals they are interested in.

Sam Litzinger has some good news for any butterfly lovers out there. Plus, new clues regarding the migration patterns of deep sea dwellers. This is Talking Animals.

Sam Litzinger discusses the strange sounds of the deep sea, and the effects they have on the animals who live down there. Plus, ever thought of having a goat clean your lawn? This is Talking Animals.

CBS News Correspondent Sam Litzinger takes a look at how shelter animals are being used to boost the spirits of prisoners.

Ecotourism at locations like Yellowstone National Park where people observe creatures in their natural habitat raises money and awareness and is supposed to be a benefit to the animals. CBS News Correspondent Sam Litzinger takes a closer look at how ecotourism might actually be harming wildlife because of their erosion of fear.