I've been trying to make a penguin-like humanoid race for a pretty long time now.
I want to make them as realistic as possible. And I know such creatures could not exist in the real world, but I want to use them in a fantasy world.
I already figured multiple things to make them more 'human'. For example: they developed cartilage teeth inside their beak, allowing them to chew their food instead of swallowing whole.
But what I have yet to figure is their hands. Penguins cannot fly. So could they have evolved in a way that the end of their wings have fingers, including a thumb, while still allowing them to swim efficiently? And if so, what would it look like?