ALL ANSWERS · DINOSAURS · DAILY No. 52 · OCTOBER 25, 2026
Size It Up Dinosaurs answer: October 25
The five Dinosaurs silhouettes for October 25, 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 52 ran from an ornithomimus (4 m) to a diplodocus (26 m). The widest gap was round 1, Einiosaurus against Diplodocus, at 4.3×; the closest call was round 5, Acrocanthosaurus against Allosaurus, only 1.2× 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
Einiosaurus Einiosaurus procurvicornis vs Diplodocus Diplodocus carnegii
Diplodocus · reference · 26 m Einiosaurus · true length · 6 m 4.3× shorter than the diplodocus
Einiosaurus is represented here by a selected estimated total length of 6 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 2
Corythosaurus Corythosaurus casuarius vs Ornithomimus Ornithomimus
Ornithomimus · reference · 4 m Corythosaurus · true length · 10 m 2.5× longer than the ornithomimus
Corythosaurus 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 3
Daspletosaurus Daspletosaurus degrootorum vs Euoplocephalus Euoplocephalus tutus
Euoplocephalus · reference · 7 m Daspletosaurus · true length · 9 m 1.3× longer than the euoplocephalus
Daspletosaurus is represented here by a selected estimated total length of 9 m. This is the museum directory estimate used for this comparison; individual animals and reconstructions vary.
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ROUND 4
Therizinosaurus Therizinosaurus cheloniformis vs Megalosaurus Megalosaurus bucklandii
Megalosaurus · reference · 6 m Therizinosaurus · true length · 10 m 1.7× longer than the megalosaurus
Therizinosaurus 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
Acrocanthosaurus Acrocanthosaurus atokensis vs Allosaurus Allosaurus fragilis
Allosaurus · reference · 9.7 m Acrocanthosaurus · true length · 12 m 1.2× longer than the allosaurus
Acrocanthosaurus is represented here by a selected estimated total length of 12 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.