KnowKi

Learn the wildlife of any country

Learn the wildlife of Aruba

North & Central America

1,147 species have research-grade observations in Aruba on iNaturalist. KnowKi turns the most recorded into short lessons with real photos, so you can learn a country's wildlife from home.

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Āki the kiwi, KnowKi's guide

Most recorded here

The species with the most research-grade observations on iNaturalist, and how many each has. Most recorded doesn't mean native.

Birds

  1. Venezuelan Troupial Icterus icterus484
  2. Brown Pelican Pelecanus occidentalis450
  3. Carib Grackle Quiscalus lugubris421
  4. Bananaquit Coereba flaveola416
  5. Bare-eyed Pigeon Patagioenas corensis401
  6. Laughing Gull Leucophaeus atricilla310
  7. Eared Dove Zenaida auriculata292
  8. Tropical Mockingbird Mimus gilvus236
  9. Burrowing Owl Athene cunicularia205
  10. Common Ground Dove Columbina passerina201

Plants

  1. Stenocereus griseus391
  2. Opuntia caracassana273
  3. ABC Turk's Cap Cactus Melocactus macracanthos202
  4. Twisted acacia Vachellia tortuosa192
  5. Giant milkweed Calotropis procera171
  6. Sea purslane Sesuvium portulacastrum169
  7. Sea grape Coccoloba uvifera161
  8. Green Buttonwood Conocarpus erectus147
  9. Aloe vera Aloe vera89
  10. Scarlet Cordia Cordia sebestena88

Mammals

  1. Domestic Goat Capra hircus103
  2. Donkey Equus asinus49
  3. Domestic Cat Felis catus30
  4. Domestic Dog Canis familiaris21

Insects

  1. Monarch Danaus plexippus106
  2. Polistes myersi52
  3. Western Honey Bee Apis mellifera50
  4. Gulf Fritillary Dione vanillae49
  5. Eunota auraria28
  6. Tawny Pennant Brachymesia herbida27
  7. Rambur's Forktail Ischnura ramburii23
  8. Seaside Dragonlet Erythrodiplax berenice23
  9. Lyside Sulphur Kricogonia lyside22
  10. Great Pondhawk Erythemis vesiculosa18

Spiders and kin

  1. Gray Wall Jumping Spider Menemerus bivittatus31
  2. Silver Garden Orbweaver Argiope argentata27
  3. Leucauge argyra8
  4. Centruroides testaceus7
  5. Golden Silk Spider Trichonephila clavipes7

Reptiles

  1. Aruba Whiptail Cnemidophorus arubensis1,247
  2. Green Iguana Iguana iguana1,012
  3. Striped Anole Anolis lineatus192
  4. Cope's Ameiva Ameiva bifrontata141
  5. Green Sea Turtle Chelonia mydas124
  6. Boa Constrictor Boa constrictor83
  7. Wiegmann's Striped Gecko Gonatodes vittatus70
  8. Pond Slider Trachemys scripta47
  9. Asian House Gecko Hemidactylus frenatus37
  10. Baker's Cat-eyed Snake Leptodeira bakeri31

Amphibians

  1. Cane Toad Rhinella marina49
  2. Colombian Four-eyed Frog Pleurodema brachyops16
  3. Lesser Antillean whistling frog Eleutherodactylus johnstonei8

Fish

  1. Atlantic Blue Tang Acanthurus coeruleus209
  2. Smooth Trunkfish Lactophrys triqueter167
  3. Atlantic Sergeant Major Abudefduf saxatilis166
  4. Caribbean Bluehead Wrasse Thalassoma bifasciatum139
  5. French Angelfish Pomacanthus paru136
  6. Caribbean Ocean Surgeonfish Acanthurus tractus100
  7. French Grunt Haemulon flavolineatum95
  8. Stoplight Parrotfish Sparisoma viride89
  9. Slippery Dick Halichoeres bivittatus73
  10. Queen Parrotfish Scarus vetula68

Mollusks

  1. West Indian Fuzzy Chiton Acanthopleura granulata70
  2. Four-toothed Nerite Nerita versicolor70
  3. Lettuce Sea Slug Elysia crispata63
  4. Queen Conch Aliger gigas56
  5. Checkered Nerite Nerita tessellata41
  6. Cerion uva36
  7. West Indian Top Shell Cittarium pica33
  8. Turkey Wing Arca zebra27
  9. Thrush cowrie Naria turdus26
  10. Beaded Periwinkle Cenchritis muricatus22

How a trip works

A trip has its own trail of lessons: meet six species, match them to new photos, then practice with four choices. Species you learn go into your Fieldbook, and starting a trip earns its Passport stamp. Your home place stays as it is.

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Species lists and counts from research-grade observations on iNaturalist, as of October 2026. Free, with no ads, no account and no purchases.