Costa Rica’s extraordinary biodiversity includes hundreds of species. Here’s a categorized snapshot:
Three‑toed & two‑toed sloths; white‑faced, howler, spider, titi, squirrel monkeys; coatimundi; kinkajou; ocelot, margay, jaguarundi, jaguar, puma; manatee; tapir; armadillo; anteater; raccoon; skunk; opossum; bats.
Scarlet & great green macaws; toucans; quetzals; hummingbirds; tanagers; motmots; kingfishers; swallows; flycatchers; thrushes; orioles; finches; sparrows; vultures; eagles; hawks; owls.
Green & black iguanas; Jesus Christ lizard; basilisk lizard; Gila monster; beaded lizard; alligators; crocodiles; snakes; turtles.
Red‑eyed tree frog; blue jeans frog; strawberry, golden, black poison dart frogs; glass frogs; tree frogs; toads; salamanders.
Mahi‑mahi; tuna; sailfish; marlin; swordfish; wahoo; dorado; snapper; grouper; mackerel; sharks; rays; eels; octopus; squid; shrimp; lobster; crab.
This richness stems from varied ecosystems—rainforests, cloud forests, mangroves, coral reefs—packed into a small land area.