Reccembra and Aderrica

Reccembra is the creation of DeviantArt user Earlegs. It is a roughly Earth-like planet with the equivalent of prokaryotes and eukaryotes, algae, chemotroph fungi, and simple animals with some very strange embryology.

Aderrica is a world of sea-dwellers with six fins and land-dwellers with six legs. There are flyers, climbers, burrowers, grazers, and predators. There are those that lick up detritus and those that snap their oversized jaws around prey.