Today's five dinosaurs Size It Up comparisons with the measured size of each object, its reference and a source you can check. The puzzle is still live, so every answer stays hidden until you tap it. Haven't played yet? Play today's puzzle first.
Show today's overview (spoilers)
The October 25, 2026 puzzle ran from an Ankylosaurus at 8 m to a Brachiosaurus at 22 m — about 3× apart, drawing on dinosaurs. The pair furthest apart was round 5: a Spinosaurus is 1.7× as big as a Triceratops.
ROUND 1
How long is a Stegosaurus compared with an American school bus?
Reveal the answer
Answer: Stegosaurus — 9 m. A Stegosaurus measures 9 m (length / span), which is about 1.2× smaller than the reference, an American school bus at 10.7 m.
A brain the size of a lime, in a body as long as a bus.
Common miss: players tend to inflate a Stegosaurus when it sits beside an American school bus — big things get squeezed, small familiar things get stretched.
How long is an Ankylosaurus compared with a Tyrannosaurus rex?
Reveal the answer
Answer: Ankylosaurus — 8 m. An Ankylosaurus measures 8 m (length / span), which is about 1.5× smaller than the reference, a Tyrannosaurus rex at 12.3 m.
The tail club weighed tens of kilos and could swing hard enough to break bone.
Common miss: players tend to inflate an Ankylosaurus when it sits beside a Tyrannosaurus rex — big things get squeezed, small familiar things get stretched.
Sizes are measured along the axis named in each round and link to their published source. Explore the full library by category, or read how scoring works.