Here is a partial species list for The Rainforest, grouped by exhibit as they are encountered along the one-way visitor path. The main walk-through exhibit space of the pyramid-shaped building houses many free-flight birds but they were unsigned, so I will only include species which I identified by sight. I will omit the free-flight butterfly species that were signed for three reasons: they were not on exhibit, this type of display has an ever-changing species variety, and I did not take a closeup photo of the signs!
Borneo Eared Frog
Skunk Gecko
Meller's Chameleon
Tomato Frog
Green Tree Python
Northern Tree Shrew
Pygmy Slow Loris
Giant River Otter (This is the only outdoor exhibit, but is only viewed from indoor viewing areas in the Rainforest as well as the Visitor Center)
Free Roaming Species in Main Pyramid-shaped Exhibit Space:
Bernier's Teal (unsigned)
Blue-bellied Roller (unsigned)
Cotton-top Tamarin
Crested Oropendola (unsigned)
Great Blue Turaco (unsigned)
Green-naped Pheasant Pigeon (unsigned)
Pied Imperial Pigeon (unsigned)
Red-capped Cardinal (unsigned)
Scarlet Ibis (unsigned)
Sunbittern (unsigned)
Two-toed Sloth
Victoria Crowned Pigeon (unsigned)
White-faced Saki
Bruce's Green Pigeon (unsigned)
Chestnut-breasted Malkoha (unsigned)
Rodrigues Fruit Bat
Poison Dart Frogs (unspecified species)
Alligator Lizard
Mantella
Bush Viper
Panamanian Golden Frog
Mandarin Rat Snake
Veiled Chameleon (signed as Jackson's Chameleon)
Palm Viper
Prehensile-tailed Porcupine
Pygmy Slow Loris
Leaftail Gecko
Asian Forest Scorpion
Trinidad Chevron Tarantula
Crested Gecko
Solomon Island Leaf Frog
Empty
Archerfish
Mono
Scat
Asian Bonytongue
Asian Clown Knifefish
Fly River Turtle
Giant Gourami
Mandarin Duck
Tiger River Stingray (unsigned)
Komodo Dragon
Caiman Lizard
Ocelot
Goliath Bird-eater Spider
Empty
Egyptian Fruit Bat
Acara
Arapaima
Firewood Catfish
Freshwater Stingray
Pirapitinga
Plecostomus
Polka Dot Catfish
Ripsaw Catfish
Silver Arawana
Tambaqui
Tiger Shovelnose Catfish
Yellow Spotted Amazon River Turtle (unsigned)
Zamurito
Zebra Catfish
Blue and Gold Macaw
Hyacinth Macaw
Green Anaconda
Angelfish
Armored Catfish
Banded Leporinus
Cardinal Tetra
Discus
Eartheater
Headstander
Oscar
Pencilfish
Red-bellied Piranha
Red-hook Silver Dollar Tetra
Severum
Silver Dollar Tetra
Tetras
Tucan
Common Vampire Bat
Jamaican Boa
Madagascar Hissing Cockroach
Empty
Marbled Lungfish
Nile Perch
Lake Victoria Squeaker
Mbiri
Nile Tilapia
Obliquidens Zebra
Rock Kribensis
Blue Duiker
Red-billed Hornbill (unsigned)
Wrinkled Hornbill (unsigned)
Bichir
Distichodus
Giant Freshwater Puffer
Upside-down Catfish
White-bellied Caique (unsigned)
Leaf-cutter Ant
Spadefoot Toad
Sailfin Lizard
Bush Viper
Gaboon Viper
Bushmaster
Poison Dart Frogs (unsigned, unidentified species)
Brazilian Fer-de-lance
Humphead Cichlid
Lake Victoria Cichlids (located in hall after exiting Rainforest)
Borneo Eared Frog
Skunk Gecko
Meller's Chameleon
Tomato Frog
Green Tree Python
Northern Tree Shrew
Pygmy Slow Loris
Giant River Otter (This is the only outdoor exhibit, but is only viewed from indoor viewing areas in the Rainforest as well as the Visitor Center)
Free Roaming Species in Main Pyramid-shaped Exhibit Space:
Bernier's Teal (unsigned)
Blue-bellied Roller (unsigned)
Cotton-top Tamarin
Crested Oropendola (unsigned)
Great Blue Turaco (unsigned)
Green-naped Pheasant Pigeon (unsigned)
Pied Imperial Pigeon (unsigned)
Red-capped Cardinal (unsigned)
Scarlet Ibis (unsigned)
Sunbittern (unsigned)
Two-toed Sloth
Victoria Crowned Pigeon (unsigned)
White-faced Saki
Bruce's Green Pigeon (unsigned)
Chestnut-breasted Malkoha (unsigned)
Rodrigues Fruit Bat
Poison Dart Frogs (unspecified species)
Alligator Lizard
Mantella
Bush Viper
Panamanian Golden Frog
Mandarin Rat Snake
Veiled Chameleon (signed as Jackson's Chameleon)
Palm Viper
Prehensile-tailed Porcupine
Pygmy Slow Loris
Leaftail Gecko
Asian Forest Scorpion
Trinidad Chevron Tarantula
Crested Gecko
Solomon Island Leaf Frog
Empty
Archerfish
Mono
Scat
Asian Bonytongue
Asian Clown Knifefish
Fly River Turtle
Giant Gourami
Mandarin Duck
Tiger River Stingray (unsigned)
Komodo Dragon
Caiman Lizard
Ocelot
Goliath Bird-eater Spider
Empty
Egyptian Fruit Bat
Acara
Arapaima
Firewood Catfish
Freshwater Stingray
Pirapitinga
Plecostomus
Polka Dot Catfish
Ripsaw Catfish
Silver Arawana
Tambaqui
Tiger Shovelnose Catfish
Yellow Spotted Amazon River Turtle (unsigned)
Zamurito
Zebra Catfish
Blue and Gold Macaw
Hyacinth Macaw
Green Anaconda
Angelfish
Armored Catfish
Banded Leporinus
Cardinal Tetra
Discus
Eartheater
Headstander
Oscar
Pencilfish
Red-bellied Piranha
Red-hook Silver Dollar Tetra
Severum
Silver Dollar Tetra
Tetras
Tucan
Common Vampire Bat
Jamaican Boa
Madagascar Hissing Cockroach
Empty
Marbled Lungfish
Nile Perch
Lake Victoria Squeaker
Mbiri
Nile Tilapia
Obliquidens Zebra
Rock Kribensis
Blue Duiker
Red-billed Hornbill (unsigned)
Wrinkled Hornbill (unsigned)
Bichir
Distichodus
Giant Freshwater Puffer
Upside-down Catfish
White-bellied Caique (unsigned)
Leaf-cutter Ant
Spadefoot Toad
Sailfin Lizard
Bush Viper
Gaboon Viper
Bushmaster
Poison Dart Frogs (unsigned, unidentified species)
Brazilian Fer-de-lance
Humphead Cichlid
Lake Victoria Cichlids (located in hall after exiting Rainforest)