The hippos were especially real looking to me. Here's a clip from an interview
with Sony execs:
You're the head of Sony's worldwide development studios. What the hell is up with that Africa game?
Video games have a function in life, and that is: wish fulfillment. You can become a mercenary, a fighter pilot. On PS3, we can expand the realm of that experience. Africa allows you to experience a very interesting part of the world, a safari in the plains of Africa. The gameplay is entirely non-violent. You don't kill the animals. It emphasizes the positives rather than the negatives.
It's about collecting experiences and keeping them for posterity.
What's up with the guy riding in the Jeep, shown at the end of the trailer?
That's you. Or rather, that's one of the people you'll control. (He stops himself from saying anything else.)