Something i find really funny about the Mega Man X series, is that all the animal themed Reploids look like that because the CHOSE to. Because Reploids have free will.
This:
Is how Reploids look normally.
See this guy?
He was probably a normal looking Reploid once.
But then he probably saw an eagle and thought.
“That thing looks awesome, and i love flying. I WANNA BE AN EAGLE!“
See This Guy?
He was probably a normal looking Reploid, Then he saw a penguin and went.
“yes. this is what i want to be. better save some money so i can turn myself in a penguin.“