ALL ANSWERS · DINOSAURS · DAILY No. 37 · OCTOBER 10, 2026
Size It Up Dinosaurs answer: October 10
The five Dinosaurs silhouettes for October 10, with the true sizes. If you have not played yet, this page is a spoiler — play these five first, then come back to argue with the numbers.
Day 37 ran from a dromaeosaurus (1.8 m) to an apatosaurus (21 m). The widest gap was round 3, Torvosaurus against Dromaeosaurus, at 5.6×; the closest call was round 2, Allosaurus against Yangchuanosaurus, only 1.0× apart — the kind of round that separates a 90 from a 60.
SPOILER · TODAY’S FIVE
You have not finished today’s puzzle on this device. The answers below are blurred so you can still play first.
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ROUND 1
Leaellynasaura Leaellynasaura amicagraphica vs Lufengosaurus Lufengosaurus
Lufengosaurus · reference · 6 m Leaellynasaura · true length · 2 m 3.0× shorter than the lufengosaurus
Leaellynasaura is represented here by a selected estimated total length of 2 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
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ROUND 2
Allosaurus Allosaurus fragilis vs Yangchuanosaurus Yangchuanosaurus shangyouensis
Yangchuanosaurus · reference · 10 m Allosaurus · true length · 9.7 m 1.0× shorter than the yangchuanosaurus
Allosaurus is represented here by a selected estimated total length of 9.7 m. Dinosaur reconstructions vary; this is the source value used for this comparison.
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ROUND 3
Torvosaurus Torvosaurus tanneri vs Dromaeosaurus Dromaeosaurus albertensis
Dromaeosaurus · reference · 1.8 m Torvosaurus · true length · 10 m 5.6× longer than the dromaeosaurus
Torvosaurus is represented here by a selected estimated total length of 10 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
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ROUND 4
Baryonyx Baryonyx walkeri vs Apatosaurus Apatosaurus louisae
Apatosaurus · reference · 21 m Baryonyx · true length · 10 m 2.1× shorter than the apatosaurus
Baryonyx is represented here by a selected estimated total length of 10 m. Dinosaur reconstructions vary; this is the source value used for this comparison.
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ROUND 5
Centrosaurus Centrosaurus apertus vs Psittacosaurus Psittacosaurus mongoliensis
Psittacosaurus · reference · 2 m Centrosaurus · true length · 6 m 3.0× longer than the psittacosaurus
Centrosaurus is represented here by a selected estimated total length of 6 m. Dinosaur reconstructions vary; this is the published estimate used for this comparison.
Beat these tomorrow
Every round is worth up to 100 points: within 6% of the true size scores 100, half or double scores 45, five times off scores zero. The daily puzzle is the same five for everyone and refreshes at midnight in your time zone; if you want more than five, Size It Up Unlimited draws fresh pairs from the whole library for as long as you like.