Learn the wildlife of the Pantanal
Brazil · Bolivia · Paraguay
The Pantanal is one of E.O. Wilson's Key Places, irreplaceable for life on Earth. 2,341 species have research-grade observations there on iNaturalist, and KnowKi turns the most recorded into short lessons with real photos.
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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
- Jabiru Jabiru mycteria1,644
- Cocoi Heron Ardea cocoi1,295
- Hyacinth Macaw Anodorhynchus hyacinthinus1,234
- Rufescent Tiger-Heron Tigrisoma lineatum1,233
- Crested Caracara Caracara plancus1,075
- Black-collared Hawk Busarellus nigricollis1,007
- Ringed Kingfisher Megaceryle torquata966
- Yellow-billed Cardinal Paroaria capitata882
- Bare-faced Curassow Crax fasciolata830
- Wattled Jacana Jacana jacana794
Plants
- Anchored water hyacinth Pontederia azurea189
- Acuri Palm Attalea phalerata186
- Common water hyacinth Pontederia crassipes174
- Bush Morning Glory Ipomoea carnea107
- Vochysia divergens104
- Caranday Palm Copernicia alba91
- Cereus bicolor85
- Pink Tab Handroanthus heptaphyllus67
- Heart of Flame Bromelia balansae53
- Ant Tree Triplaris americana42
Mammals
- Jaguar Panthera onca1,995
- Capybara Hydrochoerus hydrochaeris1,460
- Giant Otter Pteronura brasiliensis891
- Marsh Deer Blastocerus dichotomus779
- Hooded Capuchin Sapajus cay695
- Black-and-gold Howler Monkey Alouatta caraya689
- Crab-eating Fox Cerdocyon thous543
- South American Tapir Tapirus terrestris451
- Giant Anteater Myrmecophaga tridactyla392
- Southern Brown Brocket Subulo gouazoubira357
Insects
- Gray Cracker Hamadryas februa233
- White Peacock Anartia jatrophae197
- Banded Orange Heliconian Dryadula phaetusa123
- Flame-tailed Pondhawk Erythemis peruviana115
- Orcus Checkered-Skipper Burnsius orcus113
- Western Honey Bee Apis mellifera99
- Polydamas Swallowtail Battus polydamas82
- Gulf Fritillary Dione vanillae81
- Julia Heliconian Dryas iulia77
- Hieroglyphic Moth Diphthera festiva75
Spiders and kin
- Bolivian Salmon Pink Tarantula Acanthoscurria chacoana67
- Gray Wall Jumping Spider Menemerus bivittatus24
- Brazilian Red Tarantula Nhandu carapoensis17
- Silver Garden Orbweaver Argiope argentata15
- Pantropical Jumping Spider Plexippus paykulli13
- Tityus confluens13
Reptiles
- Yacare Caiman Caiman yacare2,557
- Green Iguana Iguana iguana472
- Yellow Anaconda Eunectes notaeus323
- Argentine Black-and-white Tegu Salvator merianae276
- Giant Ameiva Ameiva ameiva272
- Red-footed Tortoise Chelonoidis carbonarius167
- Yellow-bellied Liophis Erythrolamprus poecilogyrus98
- Chaco Spiny Lizard Tropidurus lagunablanca96
- Mato Grosso Lancehead Bothrops mattogrossensis87
- False Water Cobra Hydrodynastes gigas72
Amphibians
- Chaco Tree Frog Boana raniceps224
- Miranda's White-lipped Frog Leptodactylus macrosternum135
- Mato Grosso Snouted Tree Frog Scinax acuminatus125
- Cururu Toad Rhinella diptycha118
- Lesser Snouted Tree Frog Scinax nasicus51
- Paraguayan Swimming Frog Pseudis platensis45
- Chaco Granulated Toad Rhinella major45
- Two-colored oval frog Elachistocleis bicolor36
- Muller's Termite Frog Dermatonotus muelleri25
- Southern Orange-legged Leaf Frog Pithecopus azureus22
Fish
- Snow King Pleco Pterygoplichthys ambrosettii64
- Redbelly Piranha Pygocentrus nattereri20
- Brown Hoplo Hoplosternum littorale16
- Red Ruby Piranha Serrasalmus maculatus14
- Common Wolffish Hoplias malabaricus14
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.
Species lists and counts from research-grade observations on iNaturalist, as of October 2026. KnowKi is not affiliated with the E.O. Wilson Biodiversity Foundation. Free, with no ads, no account and no purchases.