>>13149901There is also an idea thrown around that never took off.
The steel evo being a troglodyte (a creature that loves living in caves) and the fire being a minotaur (a creature that wants to leave the cave).
There are some old bull designs that got rejected, and one of a fat beast with large horns that is sort of bull like. I think it got rejected since anons wanted a lethe/bulky schtick to set the evos apart as well. Attempts to make it thinner did not go over well once anatomy fled the scene.
>>13149921The origional dog-like fire evo had flames spewing from its ears, but a later design had a more obvious candle motif (Looking like melted wax over its head and a wick), now the current one has a much smaller flame to make it more subtle.