Is there a way to find out who took a photo that's a Microsoft screensaver?

I have a screensaver that’s stock Microsoft. I have a coworker who someone had said is a liar. She often tells tales that seem far-fetched. The coworker told me that the photo was taken by her friend, it’s a pet that belongs to her friend. This seems like another far-fetched story. If I can verify that it’s not true, then maybe the other tales she tells are not true either. Just curious.