The logo for the Pittsburgh Zoo appears pretty obvious at the start. A tree with birds flying overhead, very outdoorsy and a great symbol for a zoo, right? But looking closer at the negative space around the tree, you’ll see a gorilla and lion face staring at each other.
If you saw the two animal faces right away, good job. But did you also spot the fish jumping out of ‘water’ at the base of the tree? This is the logo that keeps on giving. Check out how one of the most recognized brands in the world evolved their clever logo over time.