Hello,
I have 7 years experience in mobile apps development. In the first stage has to look up to four levels , such as Level 1 animal , 2 animals with feathers, three feathers flying animals 4 animals with feathers fly and swim .
It is possible to make the app with the features you have mentioned. I am familiar with the requirements and as per the need i can get it done for you within reasonable amount of time.
I will start working with designing part and i will make the screens for you and send you for approval. Login, Sign up using face-book, Instagram, twitter and users will see notifications, comments, reviews and ratings, likes, unlikes and other features.
Web back-end APIs : I will develop the web admin from where you can control everything using the Web APIs linking with the mobile apps.
Please take a look into my portfolio and reviews i have many satisfied clients over here and they are doing continuously business with us.
Looking forward to hear from you soon.
Thanks
Technorizen