Flickr Google search terms

For the past few weeks, one of the most popular search terms for my photos is a variation on "guinea pig rabbit hybrid" on google images.

It takes them to this photo, which is titled Guinea Pig Rabbit Hybrid Cross Oscar. Of course, the animal in question is a rabbit, albeit a small one w/ pinned back ears. But I'm very curious as to why people are searching for guinea pig rabbit hybrids...