What Do Aliens Look Like?
Life probably has infinite diversity as we move through the cosmos. But so what? Except for the exo-biologists, we’re mostly interested in intelligent races with space flight technology. I think there’s a good argument that these folks will look a lot like us. When people ask about "aliens" I presume they are thinking about intelligent races with whom we could come in contact via travel through space (or even radio). Different environments lead to differing appearances and capabilities. But if we consider intelligent, technology-developing species that live on solid ground on Earth-like oxygen/water worlds, I'm betting that convergent evolution…