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Animals · Ages 5+
Dinosaur Size Comparison
Line up next to a T-Rex.
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What is this experiment about?
Drag the slider to walk past a human, a Triceratops, a Velociraptor, a T-Rex, and the colossal Argentinosaurus.
Questions kids ask
- What was the biggest dinosaur?
- Argentinosaurus is among the largest known dinosaurs, estimated at around 35 metres long.
- Was Velociraptor really small?
- Yes — real Velociraptors were about the size of a large turkey, much smaller than movies show.
- How do scientists know dinosaur sizes?
- They measure fossil bones and compare them to bones of living animals to estimate full body size.
