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Brachiosaurus vs Giraffe

Brachiosaurus held its head an estimated 12 metres above the ground, more than twice the height of a tall giraffe.

GiraffeHeight, Selected example
BrachiosaurusHeight, estimate from fossils
Brachiosaurus is about 3.6× the size of Giraffe across its longest side. Both shapes are drawn to the same scale.
ObjectReal sizeSource
BrachiosaurusHeight, estimate from fossilsEstimated reconstruction. Fossil evidence and reconstructions vary; this round uses a selected estimate.12 m39.4 ft

Estimated ground-to-head height with raised neck; not shoulder height or a mounted-skeleton measurement.

US Geological Survey

GiraffeHeight, Selected exampleA selected 5 m male example. The GCF guide gives 5.3 m as the average adult male height; individuals vary.5 m16.4 ft

A selected adult male giraffe example; not a claimed species-wide average.

Giraffe Conservation Foundation · p. 3

What measurements does this comparison use?

The reference values used here are 12 m for Brachiosaurus (Height, estimate from fossils) and 5 m for Giraffe (Height, Selected example). The table links to background sources; natural objects and manufactured variants can differ from these reference values.

How should I read the drawing?

Brachiosaurus spans about 3.6× as much as Giraffe across the longest side of each drawing. This is a linear scale comparison, not a comparison of mass or volume. For maps, the table reports area; doubling a map’s width and height multiplies its area by four.

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