These thematic pictures of جانور are analogous to a visual dictionary. The theme "جانور" splits into several parts. For children, especially toddlers from 1 to 5 years old, it is better to divide the sets of cards over several days, or even weeks, so the information is absorbed better. Especially it is true if you are using flashcards to learn the urdu language, which is not your native language.
To expand your urdu language vocabulary on the "جانور" topic, flashcards games are the best way: