Daily Challenge

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Every skull that has been the challenge of the day, with the answer and how the community did.

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Bar: how hard the day was compared with the others

September 2026

  1. 13ClassicNorthern GiraffeTaxonomyMahi-mahis
  2. 12ClassicFerruginous duckTaxonomyAfrican Palm Civets
  3. 11ClassicStar-Nosed MoleTaxonomyIndian Muntjac
  4. 10ClassicGrey HeronsTaxonomyEurasian Curlew
  5. 9ClassicBongoTaxonomyRufous Elephant Shrew
  6. 8ClassicBush dogTaxonomyMediterranean Gull
  7. 7ClassicReeve's MuntjacTaxonomyGabon Talapoin
  8. 6ClassicBicolored shrewTaxonomyGelada
  9. 5ClassicCommon warthogTaxonomyZebu
  10. 4ClassicJava Mouse-DeerTaxonomyWater pipit
  11. 3ClassicRazorbillsTaxonomyMasked Palm Civet
  12. 2ClassicBlack And Rufous Elephant ShrewTaxonomyWhite-nosed Coatimundi
  13. 1ClassicRed-Tailed GuenonTaxonomyCape Dune Mole-Rat

August 2026

  1. 31ClassicAntelope JackrabbitTaxonomyDingos
  2. 30ClassicSix-Banded ArmadilloTaxonomyAardwolves
  3. 29ClassicSiberian Musk DeersTaxonomyChacma Baboon/Yellow Baboon Hybrid
  4. 28ClassicRing-Tailed LemurTaxonomyAfrican spurred tortoise
  5. 27ClassicEastern MoleTaxonomyAbert’S Squirrel
  6. 26ClassicKinkajouTaxonomyBlack Crested Mangabey
  7. 25ClassicSouthern Long-Nosed ArmadilloTaxonomyLar Gibbon
  8. 24ClassicTufted DeerTaxonomyChinese Softshell Turtles
  9. 23ClassicHairy-Tailed MoleTaxonomyWater Chevrotain
  10. 22ClassicBlack-Tailed Prairie DogTaxonomyLong-Eared Owl
  11. 21ClassicEurasian Blue TitsTaxonomySea Otter
  12. 20ClassicCommon Pike CongersTaxonomyRing-Tailed Cat
  13. 19ClassicEastern chimpanzeeTaxonomyWolverine
  14. 18ClassicBlack-And-White Ruffed LemurTaxonomyKrefft’S Glider
  15. 17ClassicKeel-Billed ToucanTaxonomyDiana Monkey
  16. 16ClassicMandrillTaxonomyGray Short-Tailed Opossums
  17. 15ClassicHen harrierTaxonomyBroad-snouted caiman
  18. 14ClassicMinipizza BatfishesTaxonomyRussian tortoise
  19. 13ClassicMantled HowlerTaxonomyGemsbok
  20. 12ClassicPolar BearsTaxonomyWood mouse
  21. 11ClassicGrey Crowned CraneTaxonomyRed Eared Sliders
  22. 10ClassicCarrion crowTaxonomyCommon genet
  23. 9ClassicSiamangTaxonomyCanada lynx
  24. 8ClassicCorsac FoxesTaxonomyJapanese Macaque
  25. 7ClassicChinese Water DeerTaxonomyCape Fur Seal
  26. 6ClassicColombian Red HowlerTaxonomyGuanacos
  27. 5ClassicGreater GrisonsTaxonomyCommon Opossum
  28. 4ClassicAngolan ColobusTaxonomyMule Deer
  29. 3ClassicDomestic DogTaxonomyMexican Beaded Lizards
  30. 2ClassicCollared PeccaryTaxonomyEurasian Lynxes
  31. 1ClassicWestern Pygmy MarmosetTaxonomyPale-Billed Aracari

July 2026

  1. 31ClassicEurasian BullfinchTaxonomyTakin
  2. 30ClassicGreat HammerheadsTaxonomyDrill
  3. 29ClassicBrown HyenaTaxonomyDingo
  4. 28ClassicSwamp RabbitTaxonomyCollared Peccary
  5. 27ClassicNorthern Flying SquirrelTaxonomySouth American Sea Lions
  6. 26ClassicMediterranean water shrewTaxonomySmall Indian civet
  7. 25ClassicCommon kestrelTaxonomyHamerkop
  8. 24ClassicBrown BearsTaxonomyJava Mouse-Deer
  9. 23ClassicRaccoon Dogs (Tanuki)TaxonomyJaguar
  10. 22ClassicHooded CrowsTaxonomyDomestic Alpaca
  11. 21ClassicEuropean Wild BoarsTaxonomyFossa
  12. 20ClassicDomestic GoatsTaxonomyEurasian Bullfinch
  13. 19ClassicHammer-Headed BatTaxonomyKuhl's pipistrelle
  14. 18ClassicPanamanian White-Faced CapuchinTaxonomyAmerican Hog-Nosed Skunk
  15. 17ClassicCentral American AgoutiTaxonomyBlack-Headed Uakari
  16. 16ClassicBobcatTaxonomyNile Crocodiles
  17. 15ClassicKit FoxTaxonomyEmin’S Pouched Rat
  18. 14ClassicSnow LeopardTaxonomyBrown rat
  19. 13ClassicNaked Mole-RatTaxonomyRock Cavy
  20. 12ClassicEuropean BadgersTaxonomyVirginia Opossums
  21. 11ClassicAfrican Lions (Southern/Eastern Clade)TaxonomyBoa constrictor
  22. 10ClassicAfrican Grey ParrotsTaxonomyCommon kestrel
  23. 9ClassicEuropean goldfinchTaxonomyEuropean Moles
  24. 8ClassicCape Ground SquirrelTaxonomyEastern Wolf
  25. 7ClassicPiute Ground SquirrelTaxonomyNorthern Brown Bandicoot
  26. 6ClassicBrown-Throated SlothTaxonomyGreater Spot-Nosed Monkey
  27. 5ClassicBeech MartenTaxonomyPallas Cats
  28. 4ClassicJaguarTaxonomyHammer-Headed Bat
  29. 3ClassicGrey SealsTaxonomySpotted Hyenas
  30. 2ClassicPale foxTaxonomyBare-Tailed Woolly Opossum
  31. 1ClassicEuropean steppe polecatTaxonomyRhinoceros Iguana

June 2026

  1. 30ClassicChannel-Billed ToucanTaxonomyJavan Ferret-Badger
  2. 29ClassicBanded MongoosesTaxonomyCommon Dwarf Mongoose
  3. 28ClassicEmin’S Pouched RatTaxonomyTailless Tenrec
  4. 27ClassicBonnet MacaqueTaxonomyNorthern Short-Tailed Shrew
  5. 26ClassicTailless TenrecTaxonomyAmerican Red Foxes
  6. 25ClassicSpotted Eagle OwlTaxonomyCarrion crow
  7. 24ClassicTigers [Bengal ssp.]TaxonomyCrab-Eating Raccoon
  8. 23ClassicSika deerTaxonomyEuropean ground squirrel
  9. 22ClassicRing-Tailed CatTaxonomyBrown long-eared bat
  10. 21ClassicJavan Ferret-BadgerTaxonomyMonk Saki
  11. 20ClassicPallas CatsTaxonomyBlack-Tailed Prairie Dog
  12. 19ClassicFossaTaxonomySwamp Rabbit
  13. 18ClassicNorthern Short-Tailed ShrewTaxonomyGuinea Pigs
  14. 17ClassicBall PythonsTaxonomyCommon swift
  15. 16ClassicBrown ratTaxonomyEastern Rosella
  16. 15ClassicLionTaxonomyRed-Eared Guenon
  17. 14ClassicAmerican BadgersTaxonomyWhite-Tailed Deer
  18. 13ClassicPygmy HippopotamusTaxonomyBushbuck
  19. 12ClassicRhinoceros IguanaTaxonomyDomestic Cats
  20. 11ClassicDomestic AlpacaTaxonomyBlack tamarin
  21. 10ClassicForest Giant SquirrelTaxonomyLappet Faced Vultures
  22. 9ClassicLong-Eared HedgehogTaxonomyMbu Pufferfishes
  23. 8ClassicAfrican skimmerTaxonomyAmerican Bison
  24. 7ClassicAsian Small-Clawed OtterTaxonomyPratt's Roundleaf Bat
  25. 6ClassicBlack-Headed UakariTaxonomyblack-browed albatross
  26. 5ClassicWhite-Tailed Prairie DogTaxonomyWhite-Eared Opossum
  27. 4ClassicSaharan Striped PolecatTaxonomyKinda Baboon
  28. 3ClassicSwift FoxTaxonomyNorth American Porcupine
  29. 2ClassicCarpathian lynxTaxonomyScrub Hare
  30. 1ClassicMazama Pocket GopherTaxonomyBlack Bearded Saki

May 2026

  1. 31ClassicEurasian jayTaxonomyGreat Blue Turacos
  2. 30ClassicWeeper CapuchinTaxonomyDomestic Dog
  3. 29Classicblack-footed albatrossTaxonomyGrévy's Zebra
  4. 28ClassicCommon OpossumTaxonomyCapybaras
  5. 27ClassicChoco ToucanTaxonomyEuropean Red Foxes
  6. 26ClassicEgyptian mongooseTaxonomySilvery Lutang
  7. 25ClassicMongoose lemurTaxonomyCrested Porcupine
  8. 24ClassicRock CavyTaxonomyDholes
  9. 23ClassicCommon snapping turtleTaxonomyVisayan warty pig
  10. 22ClassicPlains ZebraTaxonomyKowari
  11. 21ClassicSea OtterTaxonomyBig Brown Bat
  12. 20ClassicGolden eagleTaxonomyCaribou
  13. 19ClassicGuinea PigsTaxonomySouthern Needle-Clawed Bushbaby
  14. 18ClassicMarsh MongooseTaxonomyCommon Brown Lemur
  15. 17ClassicDomestic Pig – FeralTaxonomyJapanese Marten
  16. 16ClassicBlackbuckTaxonomyHarp Seals
  17. 15ClassicHoffmann’S Two-Toed SlothTaxonomyCaracal
  18. 14ClassicSmall Indian civetTaxonomyLong-tailed chinchilla
  19. 13ClassicCommon RavensTaxonomyRed-eyed crocodile skink
  20. 12ClassicAldabra Giant TortoisesTaxonomyRusty-spotted genet
  21. 11ClassicElkTaxonomyCape Ground Squirrel
  22. 10ClassicFour Toed HedgehogsTaxonomyPatagonian Maras
  23. 9ClassicMouflonTaxonomyPiute Ground Squirrel
  24. 8ClassicPampas foxTaxonomyEuropean hare
  25. 7ClassicBlack Crested MangabeyTaxonomyEurasian otter
  26. 6ClassicWhite-tailed mongooseTaxonomyTigers [Bengal ssp.]
  27. 5ClassicLeopardTaxonomyRazorbills
  28. 4ClassicMahi-mahisTaxonomyCrab-eating Macaque
  29. 3ClassicAfrican spurred tortoiseTaxonomySiamang
  30. 2ClassicChacma BaboonTaxonomyBlack Agouti
  31. 1ClassicWandering AlbatrossTaxonomyHen harrier

April 2026

  1. 30ClassicTranscaucasian weaselTaxonomyJavan Rhinoceros
  2. 29ClassicTigers [Bali ssp.]TaxonomyEastern Mole
  3. 28ClassicGiant AnteaterTaxonomySouthern Long-Nosed Armadillo
  4. 27ClassicCommon whitethroatTaxonomyNaked Mole-Rat
  5. 26ClassicCommon genetTaxonomyNight Monkey
  6. 25ClassicSide-Striped JackalTaxonomyGreater Hog Badgers
  7. 24ClassicWhite-Tailed DeerTaxonomyCommon snapping turtle
  8. 23ClassicBare-Tailed Woolly OpossumTaxonomyRed-Billed Chough
  9. 22ClassicAlgerian wolfTaxonomyCape Hare
  10. 21ClassicWhite Necked RavensTaxonomyBongo
  11. 20ClassicWood mouseTaxonomyLinnaeus's two-toed Sloths
  12. 19ClassicAbdim's StorkTaxonomyEurasian wolf / European Wolf
  13. 18ClassicManed WolvesTaxonomyElk
  14. 17ClassicAfrican Grey HornbillTaxonomySika deer
  15. 16ClassicSpectacled BearTaxonomyBuru babirusa
  16. 15ClassicNorthern GannetTaxonomyRhesus Macaque
  17. 14ClassicBald UakariTaxonomyStriped Possum
  18. 13ClassicJapanese MacaqueTaxonomyChacma Baboon
  19. 12ClassicBlesbokTaxonomyGreen Sea Turtle
  20. 11ClassicEastern Blue-Tongued SkinksTaxonomyWhite-tailed mongoose
  21. 10ClassicTasmanian DevilTaxonomyManed Wolves
  22. 9ClassicWolverineTaxonomyLoggerhead sea turtle
  23. 8ClassicPratt's Roundleaf BatTaxonomyOlive Baboon
  24. 7ClassicJackson's chameleonTaxonomyCommon Blowfishes
  25. 6ClassicSoutheastern coyoteTaxonomyGiant moray
  26. 5ClassicAmerican AlligatorTaxonomyEurasian Nuthatch
  27. 4ClassicRed-eyed crocodile skinkTaxonomyAfrican golden cat
  28. 3ClassicKuhl's pipistrelleTaxonomyEuropean polecat
  29. 2ClassicChinese Ferret-BadgersTaxonomyGrey Crowned Crane
  30. 1ClassicCommon BlowfishesTaxonomyMountain Lions

March 2026

  1. 31Classic—TaxonomyBrown Bears
  2. 30ClassicAtlantic Yellow-nosed AlbatrossTaxonomyEastern chimpanzee
  3. 29ClassicGuinea baboonTaxonomyCommon Wombat
  4. 28ClassicBornean OrangutansTaxonomyGorilla
  5. 27ClassicRed-backed shrikeTaxonomyPale fox
  6. 26ClassicEmerald tree boaTaxonomySpectacled Caiman
  7. 25ClassicGreat TitsTaxonomyAmerican Alligator
  8. 24ClassicRoe DeerTaxonomySiberian Weasels
  9. 23ClassicChinese water dragonTaxonomyHooded Crows
  10. 22ClassicSand CatsTaxonomySables
  11. 21ClassicWood warblerTaxonomyRhinoceros hornbill
  12. 20ClassicTawny OwlTaxonomyBlack-striped capuchin
  13. 19ClassicSenegal GalagosTaxonomyNubian caracal
  14. 18ClassicHamerkopTaxonomyAmerican Black Bears
  15. 17ClassicSouth American coatiTaxonomyHorsfield's Tree Shrews
  16. 16ClassicGorillaTaxonomyTayra
  17. 15ClassicAardvarksTaxonomyEuropean Pine Marten
  18. 14ClassicShort-beaked EchidnasTaxonomyAfrican Wild Cats
  19. 13ClassicEastern RosellaTaxonomyAfrican Grey Hornbill
  20. 12ClassicBroad-snouted caimanTaxonomyCentral bearded dragon
  21. 11ClassicAmerican Black BearsTaxonomyAlgerian wolf
  22. 10ClassicEdible dormouseTaxonomyWandering Albatross
  23. 9ClassicJapanese MartenTaxonomyGreater False Vampire Bat
  24. 8ClassicAfrican LeopardTaxonomyKoala
  25. 7ClassicMouflonTaxonomyCommon shrew
  26. 6ClassicBlue WildebeestTaxonomyGray wolf
  27. 5ClassicGemsbokTaxonomyBay Duiker
  28. 4ClassicHorsfield's Tree ShrewsTaxonomyCommon whitethroat
  29. 3ClassicAsiatic Black BearsTaxonomyAtlantic Puffins
  30. 2ClassicCoypuTaxonomyBrown Hyena
  31. 1ClassicAmerican MartenTaxonomyWood warbler

February 2026

  1. 28ClassicEurasian otterTaxonomySiberian Musk Deers
  2. 27ClassicGreater False Vampire BatTaxonomyQuince Monitors
  3. 26ClassicAfrican Wild CatsTaxonomyEuropean Hedgehogs
  4. 25ClassicEuropean ground squirrelTaxonomyTranscaucasian weasel
  5. 24ClassicCommon shrewTaxonomyStriped Hyenas
  6. 23ClassicSaltwater CrocodilesTaxonomyCommon warthog
  7. 22ClassicCommon RaccoonsTaxonomyGround Cuscus
  8. 21ClassicAfrican Lions (Northern/Western Clade)TaxonomySyrian Hamster
  9. 20ClassicLeast WeaselsTaxonomyJavan Leopards
  10. 19ClassicGrévy's ZebraTaxonomyWhite-throated toucan
  11. 18ClassicTigers [Siberian ssp.]TaxonomyGambian Pouched Rats
  12. 17ClassicPrussian carpTaxonomyRed Pandas
  13. 16ClassicAmur HedgehogsTaxonomyIrish stoat
  14. 15ClassicRusty-spotted genetTaxonomyEurasian reed warbler
  15. 14ClassicGray langurTaxonomyBlyth's hornbill
  16. 13ClassicLinnaeus's two-toed SlothsTaxonomyLinnaeus's two-toed Sloths
  17. 12ClassicAlgerian wolfTaxonomyAlgerian wolf
  18. 11ClassicWhite-tailed mongooseTaxonomyWhite-tailed mongoose
  19. 10ClassicEastern gray squirrelTaxonomyEastern gray squirrel
  20. 9ClassicSouthern Red-Billed HornbillsTaxonomySouthern Red-Billed Hornbills
  21. 8ClassicBoa constrictorTaxonomyAsian common toad
  22. 7ClassicNorthern white-breasted hedgehogTaxonomyBlue-and-gold Macaw
  23. 6ClassicBactrian CamelsTaxonomyVeldkamp's Dwarf Epauletted Fruit Bat
  24. 5ClassicAardwolvesTaxonomyInca Jays
  25. 4ClassicArabian Red FoxesTaxonomyGray Four-Eyed Opossums
  26. 3ClassicWater pipitTaxonomyFennec fox
  27. 2ClassicBlue-and-gold MacawTaxonomySouthern pig-tailed macaque
  28. 1ClassicMongolian wolfTaxonomyJackson's chameleon

January 2026

  1. 31ClassicMantled guerezaTaxonomyAmerican Marten
  2. 30ClassicRed-and-green MacawTaxonomyMongoose lemur
  3. 29ClassicMiddle Russian stoatTaxonomyIceland Gulls
  4. 28ClassicIceland GullsTaxonomySenegal Galagos
  5. 27ClassicStriped SkunksTaxonomyCommon Raccoons
  6. 26ClassicEurasian BeaversTaxonomyGrey Seals
  7. 25ClassicCommon breamTaxonomyEurasian Sparrowhawks
  8. 24ClassicBlyth's hornbillTaxonomyNorthern Fulmar
  9. 23ClassicEuropean water voleTaxonomyMoose
  10. 22ClassicSiberian WeaselsTaxonomyEuropean hamster
  11. 21ClassicGround CuscusTaxonomyPlains Zebra
  12. 20ClassicMbu PufferfishesTaxonomyEurasian jay
  13. 19ClassicCrab-eating MacaqueTaxonomyEuropean Badgers
  14. 18ClassicBrown long-eared batTaxonomyBlesbok
  15. 17ClassicHoney badgerTaxonomyHoney badger
  16. 16ClassicMountain LionsTaxonomy—
  17. 15ClassicBat-eared foxTaxonomyShort-beaked Echidnas
  18. 14ClassicEurasian NuthatchTaxonomyDaggertooth Pike Congers
  19. 13ClassicGeladaTaxonomyWestern jackdaw
  20. 12ClassicLoggerhead sea turtleTaxonomyBlack-backed jackal
  21. 11ClassicGuanacosTaxonomySpotted Eagle Owl
  22. 10ClassicDaggertooth Pike CongersTaxonomyCongo Pied Hornbill
  23. 9ClassicOlive BaboonTaxonomySouthern Ground Hornbill
  24. 8ClassicAmerican Red FoxesTaxonomyGolden-Handed Tamarin
  25. 7ClassicGreat Roundleaf BatTaxonomyMinipizza Batfishes
  26. 6ClassicRed PandasTaxonomyBanded Mongooses
  27. 5ClassicTigers [Unknown ssp.]TaxonomyChannel-Billed Toucan
  28. 4ClassicVeldkamp's Dwarf Epauletted Fruit BatTaxonomyAldabra Giant Tortoises
  29. 3ClassicEuropean HedgehogsTaxonomyMeerkats
  30. 2ClassicGray Short-Tailed OpossumsTaxonomyAbdim's Stork
  31. 1ClassicAfrican Palm CivetsTaxonomyClouded Leopard [Mainland]

December 2025

  1. 31ClassicHarbour SealsTaxonomyGrey Fox
  2. 30ClassicArctic WolvesTaxonomyLeast Weasels
  3. 29ClassicCommon BuzzardsTaxonomySubantarctic Fur Seal
  4. 28ClassicCoyotesTaxonomyKinkajou
  5. 27ClassicDomestic CatsTaxonomyDomestic Sheep
  6. 26ClassicWhite-Tailed EaglesTaxonomyAlligator Snapping Turtles
  7. 25ClassicGolden-Handed TamarinTaxonomySmooth Newt
  8. 24ClassicStoatsTaxonomyArctic Foxes
  9. 23ClassicCape Fur SealTaxonomyGreat Hammerheads
  10. 22ClassicMediterranean GullTaxonomyIndian Leopards
  11. 21ClassicBank VolesTaxonomy—
  12. 20ClassicGrey FoxTaxonomyPolar Bears
  13. 19ClassicPale-Billed AracariTaxonomy—
  14. 18ClassicNorthern FulmarTaxonomyCrab-Eating Mongoose
  15. 17ClassicGreater Hog BadgersTaxonomyRaccoon Dogs (Tanuki)
  16. 16ClassicDomestic SheepTaxonomyCommon Wood Pigeons
  17. 15ClassicGreen Sea TurtleTaxonomyFour Toed Hedgehogs
  18. 14Classic—TaxonomyArctic Wolves
  19. 13ClassicDromedary CamelsTaxonomy—