- Mild
- A duckling is eaten by a crocodile.
- in the crashed airplane there's a skeleton that the lemurs use as a tool, kind be unnerving.
- Without his staple of raw zoo meat, Alex starts seeing the others as fresh meat and then doesn't realize what he's doing when he bites Marty's butt. With his instincts in overdrive, he then chases after Marty (with the old National Geographic theme song playing on the soundtrack). This causes Alex to go insane and become depressed.
- Various hyena-like animals called fossa are after Marty who kicks one back, but the rest jump on him. Melman then does a Tarzan bit and rescues Marty, but they then slam into a rock wall (played for action comedy). The penguins then use a spinning object to send things flying out that hit the menacing animals.
- As Alex slowly goes without food, he becomes increasingly insane and savage looking.