About This Puzzle
Did you know? Ducks have waterproof feathers thanks to an oil gland near the tail called the uropygial gland. They spread this oil during preening, which is why water beads and rolls right off their backs while splashing. Source
Photograph by Jeremy Hynes via Unsplash.
Estimated Solve Times
- 10 pieces: Under 1 minute
- 36 pieces: 3-6 minutes
- 64 pieces: 8-15 minutes
- 100 pieces: 15-30 minutes
- 200 pieces: 35-60 minutes
- 400 pieces: 1-2 hours
