ALL ANSWERS · ANIMALS · DAILY No. 16 · SEPTEMBER 19, 2026
Size It Up Animals answer: September 19
The five Animals silhouettes for September 19, 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 16 ran from a tardigrade (0.5 mm) to a fin whale (21 m). The widest gap was round 5, Copepod against European Robin, at 43×; the closest call was round 4, Fin Whale against Megalodon, only 1.3× 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
Humpback Whale vs Bottlenose Dolphin
Bottlenose Dolphin · reference · 2.8 m Humpback Whale · true length · 14 m 5.0× longer than the bottlenose dolphin
A humpback whale is about 14 m long — half a blue whale, with flippers a third of its length.
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ROUND 2
Moon Jellyfish (bell) vs Black Widow Spider (adult female, including legs)
Black Widow Spider · reference · 3.8 cm Moon Jellyfish · true diameter · 29 cm 7.6× wider than the black widow spider
A moon jellyfish's bell is about 29 cm across — the species usually runs 25 to 40 cm — and it is almost entirely water.
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ROUND 3
Varroa Mite (adult female, across the body) vs Tardigrade (adult)
Tardigrade · reference · 0.5 mm Varroa Mite · true width · 1.75 mm 3.5× wider than the tardigrade
An adult female Varroa mite is about 1.75 mm across — wider than it is long — and clamps onto honeybees like a tick.
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ROUND 4
Fin Whale (adult male) vs Megalodon
Megalodon · reference · 16 m Fin Whale · true length · 21 m 1.3× longer than the megalodon
A male fin whale averages about 21 m — second in length only to the blue whale.
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ROUND 5
Copepod (adult) vs European Robin (adult)
European Robin · reference · 13 cm Copepod · true length · 3 mm 43× shorter than the European robin
A Calanus copepod is about 3 mm long, and swarms of them feed much of the North Atlantic.
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.