| Order | Animal | Average Mass (kg) |
| 1. | |
| 2. | |
| 3. | |
| 4. | |
| 5. | |
| 6. | |
| 7. | |
| 8. | |
| 9. | |
| 10. | |
| Very large, but also very extinct | |
| Very large, but also very extinct | |
| Very large, but also very extinct | |
| Very large, but also very extinct | |
| Very large, but also very extinct | |
| Very large, but also very extinct | |
| Very large, but also very extinct | |
| Very large, but also very extinct | |
| Very large, but also very extinct | |
| Very large, but fictional as far as we know | |
| Very large, but fictional as far as we know | |
| Very large, but fictional as far as we know | |
| Very large, but fictional as far as we know | |
| Very large, but fictional as far as we know | |
| Very large, but fictional as far as we know | |
| Very large, but fictional as far as we know | |
| Very large, but fictional as far as we know | |
| Let me just go outside and make some more snowcones! | |
| Very large, but fictional as far as we know | |
| If you find a whale on land, we hope you're wearing nose-plugs | |
| Don't stop believing! | |
| He's out there somewhere | |
| The majestic sea cow! Sadly, it only lives in the water. | |