Our happy hour fact to amaze your drinking buddy with.

Using a new formula for calculating mass, researchers have discovered many dinosaurs were only about half the size as previously thought.

A team of biologists realized something was wrong with the original skeleton-based equation when they started running tests on existing species such as elephants and getting wildly inaccurate results.

Their proposed model, which focuses on the width of bones rather than the overall size of the skeleton, has downgraded the Brontosaurus from 42 tons to 20 tons and the Brachiosaurus from 35 to 18, to name a few.

In light of this, we're pretty sure Jeff Goldblum is the creepiest part of "Jurassic Park."

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