Name something that's naturally blue

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• Cerulean Sargassum Shrimp85
• Cerulean warbler85
• Cerulean-capped manakin85
• Ceruleite85
• Ceylon blue glassy tiger85
• Ceylon hedge blue85
• Ceylon indigo royal85
• Chalcoalumite85
• Chalcomenite85
• Chalk bass85
• Chalkhill blue85
• Chapman's blue85
• Chapman's hedge blue85
• Chaste tree85
• Chatham Islands forget-me-not85
• Chattering kingfisher85
• Chayesite85
• Chelmos blue85
• Chenite85
• Chequered blue85
• Cherry gall azure85
• Cherubfish85
• Chestnut-bellied rock thrush85
• Chestnut-bellied starling85
• Chestnut-breasted chlorophonia85
• Chestnut-fronted macaw85
• Chestnut-headed bee-eater85
• Chiapan blue-skipper85
• Chigong'o chandembera cha blue85
• Chilean blue crocus85
• Chilean blue mussel85
• Chilean swallow85
• Chimanimani Bluet85
• Chinese blue flycatcher85
• Chinese Blue-tailed Skink85
• Chinese dunce cap85
• Chinese forget-me-not85
• Chinese monal85
• Chinese plushblue85
• Chinese shortwing85
• Chinese Straight-Wing Blue85
• Chinese vivid niltava85
• Chipokee cichlid85
• Chitral argus blue85
• Chocolate bushblue85
• Chocolate Oakblue85
• Chocolate-backed kingfisher85
• Christelite85
• Christmas Island blue crab85
• Christmas Island blue-tailed skink85
• Christmas tree worm85
• Chromium85
• Chromodoris85
• Chrysocolla85
• Chub mackerel85
• Ciliate blue85
• Cilician Blue85
• Cinnamon-banded kingfisher85
• Claraite85
• Claw-tipped Bluet85
• Clematis85
• Clifden nonpareil85
• Cloncurryite85
• Closed bottle gentian85
• Coastal Nimble Blue85
• Coastal Sapphire85
• Coastal She-Oak Slender Bluetongue85
• Cobalt blue cichlid85
• Cobalt blue goby85
• Cobalt blue horny sponge85
• Cobalt Chromis85
• Cobalt crust85
• Cobalt Dropwing85
• Cobalt longtail85
• Cobalt milkweed beetle85
• Cobalt Paradise Kingfisher85
• Cobalt pea-blue85
• Cobalt-rumped parrotlet85
• Cobalt-winged parakeet85
• Coconut crab85
• Coconut lorikeet85
• Coelacanth85
• Coeruleolactite85
• Coldfoot bonnet85
• Collared kingfisher85
• Collared lizard85
• Colourful bluetail85
• Columbian Blue85
• Comanche skimmer85
• Comanche Springs pupfish85
• Comblainite85
• Comet ion tail85
• Comfrey85
• Comic oakblue85
• Common acacia blue85
• Common blue85
• Common Blue Apollo85
• Common Blue Charaxes85
• Common blue damsel85
• Common blue damselfly85
• Common Blue Jewel85
• Common blue violet85
• Common Blue-eye85
• Common blue-skipper85
• Common bluebottle85
• Common bluestreak85
• Common Bush Blue85
• Common cerulean85
• Common disc oakblue85
• Common Fig-Tree Blue85
• Common flat lizard85
• Common grass blue85
• Common green darner85
• Common guava blue85
• Common hedge blue85
• Common line-blue85
• Common Meadow Blue85
• Common mountain blue85
• Common painted smooth-throated lizard85
• Common paradise kingfisher85
• Common pencil-blue85
• Common rock thrush85
• Common slender bluetongue85
• Common Smoky Blue85
• Common Speedwell85
• Common sunbird-asity85
• Common tiger blue85
• Common tree snake85
• Comoro blue pigeon85
• Comoro blue vanga85
• Conasauga Blue Burrower85
• Concrete leaf85
• Congo peafowl85
• Congo tetra85
• Congo Tiger Blue85
• Conifer blueing bracket85
• Connellite85
• Cook Islands Blue85
• Copper ant-blue85
• Copper-Brown Nimble Blue85
• Coquerel's coua85
• Coral beauty angelfish85
• Cordon-bleu85
• Corn Speedwell85
• Cornetite85
• Cornflower bolete85
• Cortez angelfish85
• Corydalis85
• Côte d'Azur85
• Covellite85
• Cranberry blue85
• Crawshay's ciliate blue85
• Creeping Bellflower85
• Creeping Phlox85
• Crenulate oakblue85
• Crested coua85
• Cretan Bluet85
• Crimean Blue85
• Crimson rosella85
• Crocea clam85
• Crocidolite85
• Crooked Aster85
• Crossite85
• Crowned pigeon85
• Crustacyanin85
• Cryptic bluebottle85
• Cualstibite85
• Cuban Blue Anole85
• Cuban Blue Threadtail85
• Cuban Bluet85
• Cuban trogon85
• Cuckoo wasp85
• Cuckoo wrasse85
• Cumengeite85
• Cupflower85
• Cupid's dart85
• Cupreous Blue85
• Cuprorivaite85
• Curious Nimble Blue85
• Curl-crested jay85
• Cyan hap85
• Cyan Newt85
• Cyan Tree Iguana85
• Cyane jewel85
• Cyaneus Blue85
• Cyanochroite85
• Cyanophyllite85
• Cyanotrichite85
• Cycad blue85
• Cyna blue85
• Cypris morpho85
• Dainty damselfly85
• Daisy's ricefish85
• Damar blue flycatcher85
• Damon blue85
• Dampiera85
• Damselfish85
• Dark blue jungle glory85
• Dark Blue Pansy85
• Dark Blue Policeman85
• Dark blue royal85
• Dark blue soldier crab85
• Dark blue tiger85
• Dark bushblue85
• Dark cerulean85
• Dark Ceylon six-lineblue85
• Dark ciliate-blue85
• Dark forest-blue85
• Dark grass blue85
• Dark green-banded blue85
• Dark Himalayan oakblue85
• Dark Jewel Sapphire85
• Dark Malayan six-line blue85
• Dark Oak-Blue85
• Dark pencil-blue85
• Dark-Based Lineblue85
• Darky plushblue85
• Darwin's Barberry85
• Date-Plum85
• Davidson Plum85
• Dawnas tailless oakblue85
• Dayak blue flycatcher85
• Dayflower85
• De Nicéville's dull oakblue85
• Dead man's fingers (Decaisnea)85
• Dean's Blue Hole85
• Decrespignyite85
• Deep blue chromis85
• Deep-blue flowerpiercer85
• Deep-blue sweat bee85
• Deep-water hap85
• Defined Ciliate Blue85
• Delicate blue85
• Delicate blue-eye85
• Delosperma lehmannii85
• Demasoni cichlid85
• Desert bluet85
• Desert bluetail85
• Desert fig-tree blue85
• Desert pupfish85
• Desert spiny lizard85
• Devil's Bay85
• Devil's Den (Florida)85
• Devil's-bit scabious85
• Devils Hole pupfish85
• Dewberry85
• Diaboleite85
• Diademed tanager85
• Diana Blue85
• Dianella85
• Didius blue morpho85
• Digenite85
• Diggles' blue85
• Dimorphic dwarf kingfisher85
• Dingy line blue85
• Dirty-blue satyr85
• Discus85
• Dogbane beetle85
• Doherty's dull oakblue85
• Doherty's Green Oakblue85
• Doherty's guava blue85
• Doherty's oakblue85
• Dollarbird85
• Dos Ojos85
• Dotted blue85
• Double-branded blue crow85
• Double-eyed fig parrot85
• Double-striped bluet85
• Downy Gentian85
• Downy Lobelia85
• Dragon Hole85
• Dragonhead85
• Drill85
• Druce's Oakblue85
• Drummond's Aster85
• Dschubba85
• Duke's Blue85
• Dull babul blue85
• Dull heath-blue85
• Dull Oak-Blue85
• Dull-blue flycatcher85
• Dumont's bluetail85
• Dunnock egg85
• Dusky angelfish85
• Dusky Azure85
• Dusky bushblue85
• Dusky grouse85
• Dusky hedge blue85
• Dusky large blue85
• Dusky Marbled Sapphire85
• Dusky meadow blue85
• Dusky-blue cupid85
• Dusky-blue flycatcher85
• Dusky-blue groundstreak85
• Dusmatovite85
• Dwarf Blue85
• Dwarf cassowary85
• Dwarf gourami85
• Dwarf jay85
• Dwarf lake iris85
• Dyeing poison frog85
• East Arabian desert agama85
• Eastern baton blue85
• Eastern blue devil85
• Eastern blue sapphire85
• Eastern Blue-headed Wagtail85
• Eastern Bluewing85
• Eastern Bronze Azure85
• Eastern fence lizard85
• Eastern forktail85
• Eastern hooded pitta85
• Eastern pondhawk85
• Eastern Pygmy-Blue85
• Eastern red-rumped swallow85
• Eastern rosella85
• Eastern short-tailed blue85
• Eastern tailed-blue85
• Eastern Yellow-banded Sapphire85
• Ebony jewelwing85
• Echeveria85
• Echo azure85
• Eclectus85
• Ecuadorian seedeater85
• Edwards's pheasant85
• Effenbergerite85
• Egremni Beach85
• Eilat stone85
• El Segundo blue85
• Elafonisi85
• Electric blue hap85
• Electric blue hermit crab85
• Electric blue tarantula85
• Elegant euphonia85
• Elegant parrot85
• Elegant pitta85
• Elisabeth's chromodoris85
• Ellensburg Blue85
• Elliott's Gentian85
• Ellis's Blue85
• Elnath85
• Elongate mbuna85
• Emerald betta85
• Emerald cockroach wasp85
• Emerald Sapphire85
• Emperor angelfish85
• Emperor dragonfly85
• Emperor fairywren85
• Enchanted River85
• Entoloma azureoviride85
• Entoloma panniculus85
• Entoloma percoelestinum85
• Epsilon Centauri85
• Equatorial Mountain Blue85
• Eriochalcite85
• Eros blue85
• Escambray Blue-eyed Anole85
• Escher's blue85
• Eta Centauri85
• Ethiopian Bluetail85
• Ethiopian swallow85
• Euclase85
• Eurasian jay85
• European bee-eater85
• European green lizard85
• European lobster85
• European red-rumped swallow85
• European roller85
• European Stickseed85
• Evans' mountain blue85
• Fairy martin85
• Fairy pitta85
• Fairy Pools85
• Falcate oakblue85
• Falk's Blue-headed tree agama85
• False baton blue85
• False chalkhill blue85
• False Eros blue85
• False jaboticaba85
• False Pennyroyal85
• False Pimpernel85
• Familiar bluet85
• Fan flower85
• Fatma's Blue85
• Featherfin cichlid85
• Felder's Hedge Blue85
• Felder's lineblue85
• Fender's blue85
• Ferrar's Cerulean85
• Ferroglaucophane85
• Festive hypselodoris85
• Field Blewit85
• Field Forget-me-not85
• Fiji blue devil damsel85
• Fijian Blue85
• Fischer's lovebird85
• Five Color Pond (Jiuzhaigou)85
• Five-lined skink85
• Fjallsárlón85
• Flat-billed kingfisher85
• Flavescent peacock85
• Fluoro-sodic-pedrizite85
• Fluted giant clam85
• Forest Bluet85
• Forest kingfisher85
• Forest rock thrush85
• Fork-tailed Bluet85
• Forktail blue-eye85
• Formosa wrasse85
• Fouta Djalon Sapphire85
• Fox's blue-banded bush brown85
• Franklin's Phacelia85
• Free State Blue85
• Freeman's blue-skipper85
• Friday's Blue85
• Fringed heath-blue85
• Frontosa85
• Frosted oakblue85
• Fuelleborn's cichlid85
• Fujian niltava85
• Furry blue85
• Futaleufú River85
• Gabon jewelfish85
• Gaige's rainbow lizard85
• Gainesite85
• Galapagos Blue-banded Goby85
• Gallium85
• Gamma Cassiopeiae85
• Garambullo85
• Garnet pitta85
• Gartered trogon85
• Gavarnie blue85
• Gentian85
• Georgeite85
• Georgian Silvery Blue85
• German blue ram85
• Germander sage85
• Giant blue swallowtail85
• Giant Bluetongue Skink85
• Giant coua85
• Giant danio85
• Giant flower sage85
• Giant pitta85
• Giant Slender Bluetongue85
• Gilchrist Blue Springs85
• Gilgit meadow blue85
• Gilgit mountain blue85
• Gilia85
• Gilmarite85
• Girtab85
• Giuseppettite85
• Glassy bluebottle85
• Glaucon Blue85
• Glaucophane85
• Glaucous bluegrass85
• Glaucous tanager85
• Glaucous-blue grosbeak85
• Glazed oakblue85
• Glistening line-blue85
• Globe thistle85
• Glorious blue-skipper85
• Glorious Bluewing85
• Glory-of-the-snow85
• Glossy starling85
• Glowworm85
• Godart's Blue Ringlet85
• Godart's morpho85
• Golden azure85
• Golden blue-leg baboon spider85
• Golden dewdrop85
• Golden Gate Blue85
• Golden Oakblue85
• Golden snub-nosed monkey85
• Golden swallow85
• Golden-breasted starling85
• Golden-browed chlorophonia85
• Golden-collared macaw85
• Golden-fronted leafbird85
• Golden-naped tanager85
• Golden-rumped euphonia85
• Golden-shouldered parrot85
• Golden-tailed sapphire85
• Goldquarryite85
• Gooty sapphire ornamental tarantula85
• Gorges du Verdon85
• Gosaikunda85
• Gouldian finch85
• Grace Bay85
• Graceful pitta85
• Gracile line-blue85
• Graham's Blue85
• Gram blue85
• Gran Canaria blue chaffinch85
• Gran Cenote85
• Grand Cayman anole85
• Grand Prismatic Spring85
• Grandala85
• Grandidierite85
• Grandviewite85
• Grant's bluebill85
• Grape hyacinth85