I already have five advanced species created, all of which I've mentioned before. I also have an idea for a sixth species but I'm still wondering whether they have a purpose in the story or not. I have a story set at a conference for the most advanced species in our galaxy. As the Curabitur (highly intelligent shapeshifers such as Mirus) are using this conference to get help for their war against the Exen (an extra-galactic species of war-like cybernetics who want to "improve" all life) I can't have them be the ones who created the Union to begin with, let alone invited everyone to the conference as every species would likely come to their aid straight away. I have a race of large lizard-like humanoids, bird-like people, humans, androids/AI and the possible sixth species who if included will be another cybernetic race. None of which are the heads of the Union (think galactic and effective United Nations). All of my species (apart from the Curabitur and the Exen) resemble Earth animals. I was thinking of doing the same with this leader species. An animal that's proud and considered wise. My first thought was of course the owl but the position of a bird-like race has already been taken. I just need an animal to work around. Not the dolphin or elephant, though. I just can't take an alien that looks like a dolphin seriously and every time I try to picture "elephant-people" in my head I end up thinking about the poor bugger who was nicknamed "the elephant man". Any other non-animal suggestions are welcomed too .