Beyond Good & Evil Easter Egg - Aedes Raymanis

Go to the Nutripills Factory (the first "real" mission), and go to the service elevator. Turn around, and to the left you'll see a corridor leading back to a lab.

Push the two empty containers to either side of the electric barricade, and move through. You'll see a dead cow, and on it's lip is a small bug poking its head up.

Snap a picture of it, and it will be revealed as "Aedes Raymanis". Michel Ancel, the creator of BG&E, also created a game called "Rayman".

While I'm not particularly familiar with that game, the creature does seem to bear some resemblance to its namesake, the games protagonist.