Mosasaurus
The apex predator of the ocean. Extremely powerful in water combat. Can equip a platform saddle for underwater bases.
Full Mosasaurus wiki pageARK creature comparison
Mosasaurus vs Rex
Side-by-side ARK creature comparison: stats, traits and which is better.
Rex
The Rex is one of the most iconic creatures in ARK. A powerful carnivore, often used as a combat mount for boss fights and base raids.
Full Rex wiki pageThe Verdict
Overall winner: Mosasaurus
Mosasaurus comes out ahead on raw power (score 62/100, tier B) and wins 3/4 compared stats. Rex is more accessible to tame (Easy difficulty). Roles differ: Mosasaurus plays as a Soaker, Rex as a Scout — pick by what your tribe needs.
Stat wins: Mosasaurus 3 – 1 Rex. Auto-generated summary computed from base stats — a community estimate, not an official ranking.
Stat-by-Stat Comparison
| Stat | Mosasaurus | Rex | Winner |
|---|---|---|---|
| Diet | Carnivore | Carnivore | — |
| Temperament | Aggressive | Aggressive | — |
| Tameable | Yes | Yes | — |
| Rideable | Yes | Yes | — |
| Health | 3600 | 1100 | Mosasaurus |
| Stamina | 400 | 420 | Rex |
| Oxygen | 150 | 150 | Tie |
| Food | 8000 | 3000 | Mosasaurus |
| Weight | 1300 | 500 | Mosasaurus |
| Melee Damage | 1 | 1 | Tie |
| Movement Speed | 1 | 1 | Tie |
| Torpor | 3000 | 1550 | — |