Christina Lindquist is a forensic investigator. She uses evidence from animals, usually dogs and cats, to nab the bad guy. You'll hear about a murderer that was busted when he stepped in dog-poop and a rapist that was tied to the crime when a dog urinated on his car tires.

After several studies saying that kissing your dog could expose you to some unhealthy things comes a study that says "Go ahead and kiss that dog!"  Researchers think that the microbes contained in a dog's gut could have a probiotic effect on the human body, encouraging the growth of positive microorganisms.

Imagine if you cross HGTV with Animal Planet. You'll get the PBS special Animal Homes. Host Chris Morgan joins us and explains how some animals build their homes bigger and better and shinier to attract the opposite sex.

Dallas Pets Alive has started naming their adoptable animals with popular online search terms to increase their exposure by having them pop up more often in trending news feeds.

In Tokyo, they've come up with a pretty cool idea. It's called Dog Heart and you can actually rent a dog for a few hours. You can just hang out at their facility or take the dog out for a walk around the neighborhood or maybe to the park. A half-hour of playtime costs about $8 US and taking the dog for a walk for an hour runs about $30. It's becoming very popular. But the Japanese Coalition for Animal Welfare has some valid worries.