Lion, elephant, cheetah, wolf.

Explanation

**Step-by-Step Solution:**

1. **Identify the Animals**: We have four animals listed: lion, elephant, cheetah, and wolf.

2. **Classify Each Animal**:
- **Lion**: A carnivore that eats other animals.
- **Cheetah**: A carnivore that also eats other animals.
- **Wolf**: A carnivore that hunts and eats other animals.
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