CBS News Correspondent Sam Litzinger discusses a study that determines which words humans use most often when communicating with their dogs.

CBS News Correspondent Sam Litzinger reveals a new study which finds sleeping with your pet may produce a more relaxing sleep.

CBS News Correspondent Sam Litzinger has examples of ways animals are helping humans.

How do animals see the world? CBS News Correspondent Sam Litzinger highlights one company that's using virtual reality to help us see through their eyes.

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.