Answer & explanation
The official answer, with Fermi’s reasoning step by step.
Answer & explanation
Official answer
81,000
gummy bears
How to estimate it
Fermi’s official “Napkin math”
How heavy is a grown male grizzly? Picture two large men on a scale together, so call it 200 kilograms. A gummy bear is tiny, maybe 2 grams.
- Grizzly
- ~200 kg
- In grams
- ≈ 200,000 g
- One gummy bear
- ÷ 2 g
- 200,000 ÷ 2
- ≈ 100,000
How heavy is a grown male grizzly? About as heavy as two large men put together, so call it 400 pounds. How many gummy bears make an ounce? A small handful, call it 15.
- Grizzly
- ~400 lb
- In ounces, × 16
- ≈ 6,400 oz
- Gummy bears per ounce
- × 15
- 6,400 × 15
- ≈ 96,000
Rounded assumptions may give a slightly different estimate. The official answer above is the game’s reference value.
Source calculation & reference
- Average adult male grizzly, Greater Yellowstone (NPS)
- 187 kg (413 lb)
- One Goldbear: 13 pieces per 30 g serving (Haribo US label)
- ÷ 2.3 g
- 187,000 ÷ 2.3
- ≈ 81,000
Reference cited by Fermi: NPS (Yellowstone): adult male grizzlies average 187 kg (413 lb) · Haribo US: 13 Goldbears per 30 g
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