Daily Challenge · Friday
Challenge of August 21, 2026
Photos: Skull Index, Wikipedia
ClassicHarder than 61% of days
Eurasian Blue Tits
Cyanistes caeruleus
Aves/Passeriformes/Paridae/Cyanistes/Cyanistes caeruleus
- Players
- 24
- Median time
- 6 sec
Solved on try
- 138%
- 254%
- 38%
- 40%
Photos: Skull Index, Wikipedia
TaxonomyEasier than 75% of days
Sea Otter
Enhydra lutris
Where the community fell · players: 22
- ClassMammalia100%
- OrderCarnivora100%
- FamilyMustelidae95%
- GenusEnhydra68%
27% fell here
- SpeciesEnhydra lutris68%
68% reached the species