Ground Sloth Size Comparison
Ground Sloth 3D Viewer pairs published Ice Age Megatherium figures with a 1.8 m person on screen - length about 6 m (20 ft), weight about 3,700-4,000 kg - so the elephant-scale gap stays readable at a glance.
Ground Sloth published figures
The Ground Sloth facts panel and this table disclose published figures rather than one invented single number; the Size vs human control uses 6 m as the length scale ratio:
| Measure | Figure | Vs a 1.8 m person |
|---|---|---|
| Length | about 6 m (20 ft) for M. americanum; Size vs human uses 6 m | ~3.3x a person end-to-end at the 6 m scale figure |
| Weight | about 3,700-4,000 kg (comparable to an Asian elephant) | shown as a published range, not one settled point |
| Signature behavior | stable tripod stance on hind legs + heavy tail to browse high foliage | visible as hind-leg / tail mass beside the scale figure |
| Feeding anatomy | black-rhinoceros-like prehensile upper lip; not the long prehensile tongue of older popular depictions | fact-panel correction, not a Size vs human input |
| When it lived | Pleistocene Ice Age mammal (not a dinosaur); extinct about 12,000 years ago; first fossil 1787 Torres / Cuvier 1796; Campo Laborde butchery site ~12,600 ya | tens of millions of years after non-avian dinosaurs |
How the Ground Sloth size-vs-human toggle stays honest
The Ground Sloth model is drawn to a fixed on-screen length so it fits the canvas; the Size vs human control then places a 1.8 m person at the true length ratio used by the viewer (6 m). Tap Size vs human under the canvas to show or hide the scale figure - the comparison is proportional, not a decorative sticker. The published length for M. americanum is commonly about 6 m, so the toggle matches that disclosed figure.
What a person would see beside a Ground Sloth
What a person would see is a bulky Pleistocene mammal - not a dinosaur - whose hind feet, thick pelvis, and heavy tail support a stable tripod stance for high browsing; turn on the person in the viewer and orbit beside a hind leg to feel elephant-scale mass relative to the scale figure. A license-clean Poly by Google CC-BY 3.0 glTF may swap in after first paint; procedural fur color remains an artistic choice if the model load fails.
What the Ground Sloth size numbers are not
What these size numbers are not is a claim of one precise length or weight beyond about 6 m / 3,700-4,000 kg: the Ground Sloth size comparison uses 6 m only for the Size vs human scale; it does not claim Megatherium was a dinosaur, does not revive the inaccurate long-tongue depiction, does not invent soft-tissue accuracy for the procedural body, and this is not a win/lose game. For the control walkthrough see how to view Ground Sloth in 3D. For trade-offs versus phone AR apps see Ground Sloth 3D viewer vs AR apps.
Other animals to compare
Other animals in the collection make useful size comparisons too: for another non-dinosaur in this collection see the Plesiosaurus 3D Viewer, or for a Late Cretaceous ceratopsian of similar multi-meter length see the Pachyrhinosaurus 3D Viewer.
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