KnowKi

Learn the wildlife of any country

Learn the wildlife of Puerto Rico

North & Central America

6,323 species have research-grade observations in Puerto Rico 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. Greater Antillean Grackle Quiscalus niger4,209
  2. Gray Kingbird Tyrannus dominicensis2,183
  3. Zenaida Dove Zenaida aurita2,114
  4. Pearly-eyed Thrasher Margarops fuscatus1,984
  5. Rock Pigeon Columba livia1,727
  6. Bananaquit Coereba flaveola1,697
  7. Red Junglefowl Gallus gallus1,613
  8. Brown Pelican Pelecanus occidentalis1,344
  9. Great Egret Ardea alba1,226
  10. White-winged Dove Zenaida asiatica1,134

Plants

  1. Sea grape Coccoloba uvifera1,899
  2. Coconut palm Cocos nucifera1,448
  3. Sea Almond Terminalia catappa1,412
  4. Indian tulip tree Thespesia populnea1,403
  5. White beggarticks Bidens alba1,295
  6. African tulip tree Spathodea campanulata1,084
  7. Trumpetwood Cecropia schreberiana1,037
  8. Pink Trumpet-tree Tabebuia heterophylla989
  9. Flamboyant Delonix regia886
  10. Golden Pothos Epipremnum aureum871

Mammals

  1. Domestic Cat Felis catus1,300
  2. Domestic Dog Canis familiaris345
  3. Domestic Horse Equus caballus191
  4. Small Indian Mongoose Urva auropunctata170

Insects

  1. Western Honey Bee Apis mellifera1,433
  2. Tetrio Sphinx Pseudosphinx tetrio1,042
  3. Puerto Rican calisto Calisto nubila756
  4. Gulf Fritillary Dione vanillae742
  5. Caribbean Paper Wasp Polistes crinitus510
  6. St. Andrew's Cotton Stainer Dysdercus andreae496
  7. Monarch Danaus plexippus423
  8. Greater Antillean Carpenter Xylocopa mordax409
  9. Zebra Longwing Heliconius charithonia398
  10. V-Mark Skipper Choranthus vitellius347

Spiders and kin

  1. Silver Garden Orbweaver Argiope argentata995
  2. Gray Wall Jumping Spider Menemerus bivittatus597
  3. Leucauge argyra490
  4. Common Puerto Rican Brown Tarantula Cyrtopholis portoricae484
  5. Pantropical Huntsman Spider Heteropoda venatoria455
  6. Leucauge regnyi402
  7. Spinybacked Orbweaver Gasteracantha cancriformis281
  8. Puerto Rican Pinktoe Tarantula Caribena laeta255
  9. Anasaitis banksi228
  10. Nolavia antiguensis209

Reptiles

  1. Crested Anole Anolis cristatellus9,349
  2. Green Iguana Iguana iguana4,719
  3. Common Puerto Rican Ameiva Pholidoscelis exsul3,192
  4. Emerald anole Anolis evermanni1,451
  5. Krug's Anole Anolis krugi1,355
  6. Banded Anole Anolis stratulus1,143
  7. Puerto Rican Racer Borikenophis portoricensis836
  8. Puerto Rican Bush Anole Anolis pulchellus733
  9. Tropical House Gecko Hemidactylus mabouia634
  10. Gundlach’s Anole Anolis gundlachi592

Amphibians

  1. Common Coqui Eleutherodactylus coqui2,784
  2. Cane Toad Rhinella marina1,844
  3. Cuban Tree Frog Osteopilus septentrionalis1,241
  4. Caribbean White-lipped Frog Leptodactylus albilabris892
  5. Antillean Coqui Eleutherodactylus antillensis724
  6. Whistling Coqui Eleutherodactylus cochranae169

Fish

  1. Atlantic Sergeant Major Abudefduf saxatilis543
  2. Atlantic Blue Tang Acanthurus coeruleus456
  3. Caribbean Bluehead Wrasse Thalassoma bifasciatum396
  4. Atlantic Tarpon Megalops atlanticus355
  5. Schoolmaster Snapper Lutjanus apodus304
  6. Slippery Dick Halichoeres bivittatus303
  7. Caribbean Ocean Surgeonfish Acanthurus tractus293
  8. Mountain Mullet Dajaus monticola189
  9. Yellowtail Snapper Ocyurus chrysurus182
  10. French Grunt Haemulon flavolineatum178

Mollusks

  1. Puerto Rican Tree Snail Caracolus caracolla2,677
  2. Banded Caracol Caracolus marginella1,225
  3. Granodomus lima1,007
  4. Parthena acutangula602
  5. Puerto Rican Semi-slug Gaeotis nigrolineata468
  6. Nenia tridens422
  7. Beaded Periwinkle Cenchritis muricatus374
  8. West Indian Fuzzy Chiton Acanthopleura granulata329
  9. Neopupina crocea325
  10. Checkered Nerite Nerita tessellata315

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.