The Eolis stations are very ancient buildings. Many wild animals invested the scene. Some are harmless, but some predators are not benevolent respect to Danel.
They are equivalent to our gulls, a little bigger and more aggressive. To animate, I use the traditional technique; each frame is drawn one by one.
The Black Snack:
There are snakes on Aquagena. They occupy some corners of the stations and they are not always respectable. The biggest are animated in real time 3d. The technique, radically different from animation frame by frame, is lighter for the designer, but more cumbersome for the programmer.