Wondering why this animal in my profile photo?

Just a small observation, nothing else. I was wondering why did i get dog as my grapevine profile photo. I started observing various profile photos and realized that the initial of the user name is taken as a reference. I'll give my example- Dwight - D - Dog Other user - C..... - C - Cat E - Elephant P- Peacock M- Mouse F- Flamingo B- Bear T- Tiger L- Lion Anyone whose initials don't align with the animal? Any unique animals here??