Would a T-Rex Win a Fight Against a Brontosaurus?

We’ve all wondered it - who would win a fight between a T-Rex and a Brontosaurus? Watch this video to find out, or read our explanation below!

Brontosauruses Were Really Big

Brontosauruses’ main advantage over would-be predators was their size. They were big—REALLY big. A brontosaurus could weigh up to 38,000 pounds, over 3 times the weight of a T-Rex. A T-Rex fighting a Brontosaurus would be a little bit like a lion fighting an elephant. Most of the time, its huge size was enough to make predators look for easier, smaller prey.

T-Rexes Had Super Powerful Bites

The T-Rex probably had the strongest bite of any land animal that ever existed. It could bite with a force of 12,800 lbs., which is about as much as it weighs. A T-Rex’s bite was so strong it could have crushed a car! Even for such a large predator, the T-Rex had a massive, super-strong jaw. Yet even so, it would have had a tough time taking down the weighty Brontosaurus. Predators like the T-Rex may have hunted giant sauropods like the Brontosaurus in packs, if they hunted them at all.

So Who Would Win?

It’s impossible to say definitively who would have won between these two dinosaur giants. For one thing, they didn’t live at the same time—the Brontosaurus went extinct around 145 million years ago, about 50 million years before the Tyrannosaurus Rex lived. Plus, there aren’t any archeological records so far of a clash between a T-Rex-like theropod and a Brontosaurus-like sauropod. Unless that’s ever unearthed, this battle may just remain one for the action figure colosseum.