Tell that to am emu or ostrich, or don't, their claws aren't vestigial. I would opt for smaller tweaks like an extra rhodopsin folding with longer features so

Tell that to am emu or ostrich, or don't, their claws aren't vestigial. I would opt for smaller tweaks like an extra rhodopsin folding with longer features so I could see near (like tv remotes) ir. re-enable hibernation. Things some mammals already have would be good starts.