Here's a link to Deeeep.io's official wiki which contains up-to-date information: https://www.reddit.com/r/deeeepio/wiki/.
You can play the beta server to try for new animals in www.deeeep.io/new. The image are unexplainably smaller.
The website is automatically directed to the new version. For the old lovers , there is a button at the left side to go back to the original website .