This is a deck where the front of each card is a picture of an animal and the back shows the English and Japanese name of the animal. There are 150 animals in total.
For learning the names of things that can be easily represented graphically, going from pictures to the target language word is great. Many other decks focus on reading kanji and sentences. Using pictures here, and for related topics like household objects, sports, and geography, helps vary your study routine. Also, increased use of pictures means decreased dependence on your native language.
The front of each card shows a photograph of the animal. All the photographs are from Wikimedia Commons. The back shows the animal name in kanji, kana, and English. As usual, the fields are customizable. You can make the images smaller, for cell phone use. At current sizes, the images are just fine for iPhone-sized displays. If you're content with just the English, there's no need to display the Japanese. All the pictures are in public domain. The deck itself is under a Creative Commons Attribution 4.0 License.
More information can be found at
dperkins.org. If you find any errors, please
contact me.