If you've ever had a pet, you may have wondered if your dog or cat can be gay. You may have seen your dog mount another pup at the dog park — or watched as your cat seemed only to groom her female litter mates while ignoring her brothers. Since house pets don't often couple up with a significant other, these questions may just be speculation. However, when you look at the animal kingdom as a whole, especially those critters who are free to roam around without the confines of a human home, the idea of dogs and cats exhibiting homosexual behavior is something that deserves closer attention.

Studying Same-Sex Behavior in Animals

Same-sex behavior has long been noted in animals of many different species. In 2014, the BBC reported on a pair of male Humboldt penguins who raise orphaned eggs together at a zoo in Kent, England. You may have even noticed your own pet cuddling up to a same-sex pal. But before we can determine whether pets can be gay, we first need to set the baseline for what is considered "gay" in the animal kingdom.

Gay human beings are defined as being sexually attracted to people of the same sex. However, human sexual orientation is famously varied and fluid, and scientists who study the sexual activity of animals urge us not to compare our behavior to our pets' for a variety of reasons.

Can Sexual Behavior Be Misinterpreted?

Can dogs be gay? Can cats be gay? Here's another reason why it's tough to find the answer to these questions: for animals, what's presumed to be a mating behavior may be misinterpreted. For example, both male and female dogs will mount other dogs. While it is possible that some pets do this because they want to engage in sexual activities, there are many other reasons they may be performing that behavior. The American Society for the Prevention of Cruelty to Animals® (ASPCA) suggests that mounting is less about sex and more about playing, releasing stress or showing dominance. Also, don't forget that dogs will often mount humans and furniture as well.

PetHelpful notes that male cats (even neutered ones) may also mount their pet parents and other household kitties to show who's boss. Neutering or spaying your pet will often help prevent mounting and other aggressive behaviors. Cats are also known for their grooming skills, and will often lick and sleep cuddled up to other cats. What may seem like sexual behavior to humans may very well be a part of social grooming.

The Jury Is Still Out

While there's been much speculation, there's no scientific evidence of various animals, especially house pets, being gay or not.

"Whether there's any kind of same-sex sexual preference going on, that's left entirely to the imagination in the sense that the data just [doesn't] exist to demonstrate one way or the other," said Paul Vasey from the University of Lethbridge to the Washington Post. He continues to say that being exclusively gay is "exceptionally rare" in the animal kingdom.

So, if you're curious if your dog or cat is gay, know that there is currently no evidence to support this notion at least in terms that humans are used to defining homosexuality.