Evolution? Really? They say that the penguin fossil is 62 million years old. But if that is true why is it the same penguin as todays penguin?

A penguin is a penguin is a penguin, it might be big, it might be small, but it does not become a different animal or one cell, nope! Not possible! Nope! If we came from fish, then why is the penquin the same penguin for "65 million" years! The earth is young and God made the species the species they are now 6000 years ago with a few variations. But we did not come from fish! If you say we did then where did the first cell come from?