

*from //istanbul-turkey.blogspot.com
Now that shows real dedication!
My textbooks, too, constantly use cats as the topic for grammar exercises:
1. This animal is a cat. Bu hayvan bir kedi.
2. Cats are animals. Kediler hayvandır.
3. Some cats are big. Bazı kediler büyük.
4. A few cats are small. Birkaç kedi küçük.
This also explains why you will never, never become a fluent speaker of a language from a book.