KnowKi

Learn the wildlife of national parks

Learn the wildlife of Gunung Leuser National Park

Indonesia

1,141 species have research-grade observations inside Gunung Leuser National Park on iNaturalist. KnowKi turns the most recorded into short lessons with real photos, so you know what you're looking at before you go.

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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. Great Argus Argusianus argus78
  2. Rhinoceros Hornbill Buceros rhinoceros41
  3. Bushy-crested Hornbill Anorrhinus galeritus14
  4. Grey Wagtail Motacilla cinerea12
  5. Diard's Trogon Harpactes diardii10
  6. Pacific Swallow Hirundo javanica10
  7. Crested Serpent-Eagle Spilornis cheela9
  8. Scarlet-rumped Trogon Harpactes duvaucelii9
  9. Brown-throated Sunbird Anthreptes malacensis9
  10. Red-bearded Bee-eater Nyctyornis amictus8

Plants

  1. Phyllagathis rotundifolia9
  2. Calanthe leuseri8
  3. African Coromandel Asystasia intrusa7
  4. Rhaphidophora foraminifera7
  5. Willdenow's spikemoss Selaginella willdenowii6
  6. Titan arum Amorphophallus titanum5
  7. Rafflesia micropylora5
  8. Rhizanthes lowii5
  9. Sensitive Plant Mimosa pudica3
  10. Hanging Lobster Claw Heliconia Heliconia rostrata3

Mammals

  1. Sumatran Orangutan Pongo abelii488
  2. Thomas’s Langur Presbytis thomasi241
  3. Long-tailed Macaque Macaca fascicularis149
  4. Southern Pig-tailed Macaque Macaca nemestrina101
  5. Lar Gibbon Hylobates lar56
  6. Siamang Symphalangus syndactylus43
  7. Diadem Roundleaf Bat Hipposideros diadema20
  8. Black Giant Squirrel Ratufa bicolor20
  9. Prevost's Squirrel Callosciurus prevostii16
  10. Silvered Leaf Monkey Trachypithecus cristatus12

Insects

  1. Giant Forest Ant Dinomyrmex gigas113
  2. Nisitrus insignis42
  3. Pyrops ruehli37
  4. Common Bluebottle Graphium sarpedon27
  5. Blue Marsh Hawk Orthetrum glaucum23
  6. Pyrops pythicus20
  7. Euphaea aspasia19
  8. Sumatran Popinjay Stibochiona coresia19
  9. Great Mormon Swallowtail Papilio memnon17
  10. Black-and-white Helen Swallowtail Papilio nephelus17

Spiders and kin

  1. Giant Golden Orbweaver Nephila pilipes29
  2. Heteropoda boiei28
  3. Long-horned Orbweaver Macracantha arcuata28
  4. Abandoned-web Orb-weaver Parawixia dehaani12
  5. Ornamental Tree Trunk Spider Herennia multipuncta11
  6. Leucauge tessellata7
  7. Parallel-spined Spiny Orbweaver Gasteracantha diardi7
  8. Black-jaw Huntsman Heteropoda tetrica7
  9. Black-striped Orchard Spider Leucauge celebesiana6
  10. David Bowie Spider Heteropoda davidbowie6

Reptiles

  1. Wagler's Pit Viper Tropidolaemus wagleri59
  2. Common Water Monitor Varanus salvator37
  3. Spiny Terrapin Heosemys spinosa35
  4. Common Sun Skink Eutropis multifasciata33
  5. Malayan Softshell Turtle Dogania subplana28
  6. Indonesia Earless Agama Aphaniotis acutirostris26
  7. Hagen’s Pitviper Trimeresurus hageni23
  8. Malayan Crested Lizard Gonocephalus grandis21
  9. Sumatra Forest Dragon Gonocephalus beyschlagi21
  10. Sumatran Palm Pit Viper Craspedocephalus andalasensis21

Amphibians

  1. River Toad Phrynoidis asper38
  2. Poisonous Rock Frog Odorrana hosii27
  3. Common Southeast Asian Tree Frog Polypedates leucomystax16
  4. Asian Common Toad Duttaphrynus melanostictus13
  5. Long-nosed Horned Frog Pelobatrachus nasutus12
  6. Blyth's River Frog Limnonectes blythii6
  7. Sumatran Torrent Frog Wijayarana sumatrana6
  8. North Sumatra White-lipped Frog Hylarana parvaccola6
  9. Green Paddy Frog Hylarana erythraea5
  10. Giant River Toad Phrynoidis juxtasper5

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. Parks outside the U.S. are from the World Database on Protected Areas (UNEP-WCMC and IUCN, Protected Planet). KnowKi is not affiliated with the National Park Service or any park's managers. Free, with no ads, no account, and no purchases.