24. Berg's Tuco-tuco
Berger's Cape Tortoise
Berlepsch's Canastero
Bermuda Cave Amphipod
Bermuda Rock Lizard
Bernhard's Mantella
Bernier's Vanga
Berry Cave Salamander
Betampona Burrowing Frog
Betic Midwife Toad
Betsileo Bright-eyed Frog
Betsileo Digging Frog
Betta burdigala
Betta chini
Betta chloropharynx
Betta hipposideros
Betta livida
Betta macrostoma
Betta miniopinna
Betta persephone
Betta simplex
Betta spilotogena
Betta tomi
Bhutan Giant Flying Squirrel
Biak Bare-backed Fruit Bat
Biak Black Flycatcher
Biak Coucal
Biak Dark Crow
Biak Giant Rat
Biak Megapode
Biak Monarch
Biak Paradise-kingfisher
Biak Scops-owl
Biak Threespot Crow
Biak Tiger
Biak White-eye
Bibron's Toadlet
Bicknell's Thrush
Bicol Narrowmouth Toad
Bicolor Cactus Snail
Bicolored Antpitta
Bicoloured Antvireo
Bicoloured Frog
Bienkotetrix transsylvanicus
Bifurcated Cave Amphipod
Big Bend Gambusia
25. Big Bend Slider
Big Blue Spring Cave Crayfish
Big Deer Mouse
Big Levels Salamander
Big Mexican Small-eared Shrew
Big Pine Key Conehead Katydid
Big Pocket Gopher
Big Sandy Crayfish
Big South Fork Crayfish
Big White Fish
Big-cheeked Cave Crayfish
Big-eared Chirping Frog
Big-eyed Forest Treefrog
Big-footed Minute Salamander
Big-headed Amazon River Turtle
Big-headed Mole Rat
Big-headed Turtle
Bigeye Lates
Bigeye Tuna
Bigfoot Leopard Frog
Bigfoot Splayfoot Salamander
Bighorn Sheep
Bignose Fanskate
Binchuan Horned Toad
Bioko Forest Shrew
Biomphalaria barthi
Biomphalaria tchadiensis
Birdlike Noctule
Birdsnest Coral
Birdwing Pearlymussel
Bismarck Flying Fox
Bismarck Giant Rat
Bismarck Kingfisher
Bismarck Masked-owl
Bismarck Melidectes
Bismarck Thicketbird
Bitungu
Bizant River Shark
Black Abalone
Black And Rufous Elephant Shrew
Black Caiman
Black Catbird
Black Clubshell
Black Cod
Black Colobus Monkey
Black Creek Crayfish
26. Black Crested Gibbon
Black Crested Mangabey
Black Crowned-crane
Black Dorcopsis Wallaby
Black False Brook Salamander
Black Finless Porpoise
Black Flathead Toad
Black Giant Squirrel
Black Grouper
Black Guan
Black Harrier
Black Honey-buzzard
Black Hornbill
Black Inca
Black Jackrabbit
Black Jumping Salamander
Black Knobby Newt
Black Lemur
Black Long-fingered Frog
Black Magpie
Black Marsh Turtle
Black Mogurnda
Black Mountain Boulder Frog
Black Mudalia
Black Munia
Black Muntjac
Black Musk Deer
Black Oriole
Black Partridge
Black Racer
Black Rail
Black Rhinoceros
Black Rockfish
Black Salamander
Black Sea Bass
Black Sea Viper
Black Shama
Black Sicklebill
Black Softshell Turtle
Black Solitary Eagle
Black Squirrel Monkey
Black Stilt
Black Tinamou
Black Toad
Black Torrent Toad
Black Wallaroo
36. Broom Hare
Brother's Island Tuatara
Brown Bear
Brown Eared Pheasant
Brown False Brook Salamander
Brown Fulvetta
Brown Hyena
Brown Madagascar Frog
Brown Mesite
Brown Palm Civet
Brown Pelican
Brown Robber Frog
Brown Stingray
Brown Tanager
Brown Teal
Brown Tropical Frog
Brown Wood-rail
Brown's Hutia
Brown-backed Dove
Brown-backed Flowerpecker
Brown-backed Parrotlet
Brown-banded Antpitta
Brown-cheeked Hornbill
Brown-chested Jungle-flycatcher
Brown-headed Crow
Brown-headed Spider Monkey
Brown-marbled Grouper
Brown-reticulate Stingray
Brown-spotted Catshark
Brown-spotted Rockcod
Brown-tailed Mongoose
Brown-winged Kingfisher
Brownband Numbfish
Brownstriped Grunt
Bruijn's Brush-turkey
Bruijn's Pogonomelomys
Brumback's Night Monkey
Bruneau Hot Springsnail
Brush-tailed Phascogale
Brush-tailed Rabbit Rat
Brush-tailed Rat-kangaroo
Brush-tailed Rock Wallaby
Bryant's Woodrat
Bryophryne bustamantei
Bryophryne cophites
Bubble Coral (Plerogyra discus)
47. Chiapan Deer Mouse
Chiapan Pigmy Anole
Chickamanga Crayfish
Chignahuapan Splayfoot Salamander
Chihuahuan Deer Mouse
Chihuahuan Fringe-toed Lizard
Chile Darwin's Frog
Chile Mountains False Toad
Chilean Caenolestid
Chilean Dolphin
Chilean Flamingo
Chilean Woodstar
Chili Water Frog
Chiloglanis lufirae
Chiloglanis ruziziensis
Chimalapa Toad
Chimanimani Stream Frog
Chimbo Rocket Frog
Chimpanzee
Chinamococh Stream Frog
Chinanteco Deer Mouse
Chinese Alligator
Chinese Bahaba
Chinese Broad-headed Pond Turtle
Chinese Crested Tern
Chinese Egret
Chinese Giant Salamander
Chinese Goral
Chinese Grouse
Chinese Lazy Toad
Chinese Monal Pheasant
Chinese Paddlefish
Chinese Pangolin
Chinese River Dolphin
Chinese Salamander
Chinese Serow
Chinese Soft-shelled Turtle
Chinese Stripe-necked Turtle
Chinese Sturgeon
Chinese Three-keeled Pond Turtle
Chinese Three-striped Box Turtle
Chinese Water Deer
Chinhai Spiny Newt
Chinook Salmon
Chipola Slabshell
Chiricahua Leopard Frog
81. Glossogobius flavipinnis
Glossogobius intermedius
Glossogobius matanensis
Glovers Hardyhead
Glow-throated Hummingbird
Glyptophysa petiti
Glyptorhagada bordaensis
Glyptorhagada euglypta
Glyptorhagada kooringensis
Glyptorhagada silveri
Glyptorhagada tattawuppana
Godman's Treefrog
Goebel's False Brook Salamander
Goeldi's Marmoset
Goeldi's Spiny Rat
Goitered Gazelle
Gola Malimbe
Gold-fronted Fulvetta
Gold-ringed Tanager
Gold-spotted Marsupial Frog
Goldbelly Reed Frog
Golden Bamboo Lemur
Golden Bandicoot
Golden Bell Frog
Golden Cownose Ray
Golden Dancing-jewel
Golden Frog
Golden Grouper
Golden Hamster
Golden Lancehead
Golden Langur
Golden Line Fish
Golden Lion Tamarin
Golden Mantella
Golden Minute Salamander
Golden Palm Civet
Golden Parakeet
Golden Poison Frog
Golden Shrub Frog
Golden Swallow
Golden Treefrog
Golden Vizcacha Rat
Golden White-eye
Golden-backed Mountain Tanager
Golden-backed Squirrel Monkey
Golden-bellied Flyrobin
85. Gray-cheeked Parakeet
Gray-chested Jungle-flycatcher
Gray-crested Helmet-shrike
Gray-crowned Crocias
Gray-crowned Palm-tanager
Gray-crowned Prinia
Gray-faced Sengi
Gray-footed Spiny Rat
Gray-handed Night Monkey
Gray-headed Albatross
Gray-headed Antbird
Gray-headed Flying Fox
Gray-headed Quail-dove
Gray-headed Warbler
Gray-hooded Sunbird
Gray-necked Rockfowl
Gray-sided Thrush
Gray-throated Warbler
Gray-winged Cotinga
Graytail Skate
Graziana klagenfurtensis
Great Antpitta
Great Argus
Great Bustard
Great Curassow
Great Desert Skink
Great Green Macaw
Great Hornbill
Great Indian Bustard
Great Indian Rhinoceros
Great Key Island Mosaic-tailed Rat
Great Lake Freshwater Snail
Great Peeping Frog
Great Piebald Horned Toad
Great Raft Spider
Great Snipe
Great Spinetail
Great Spotted Kiwi
Great Stingaree
Great White Shark
Great-billed Seed-finch
Greater Adjutant
Greater Bamboo Lemur
Greater Bromeliad Treefrog
Greater Dwarf Lemur
Greater Fat-tailed Jerboa
86. Greater Large-headed Shrew
Greater Long-tailed Bat
Greater Marmoset Rat
Greater Mascarene Flying Fox
Greater Monkey-faced Bat
Greater Prairie-chicken
Greater Rhea
Greater Sage-grouse
Greater Scythebill
Greater Slow Loris
Greater Spikethumb Frog
Greater Spiny Madagascar Frog
Greater Spotted Eagle
Greater Stick-nest Rat
Greater Tip-nosed Frog
Greater Wilfred's Mouse
Greek Algyroides
Greek Brook Lamprey
Greek Goldenwing
Greek Red Damsel
Greek Rock Lizard
Green And Gold Frog
Green And Red Venter Harlequin Toad
Green Avadavat
Green Bromeliad Frog
Green Bubble-nest Frog
Green Cave Frog
Green Crab
Green Hammer Coral
Green Iora
Green Labeo
Green Mantella
Green Peafowl
Green Poison Frog
Green Psammodromus
Green Salamander
Green Sea Turtle
Green Sturgeon
Green Torch Coral
Green-backed Kingfisher
Green-billed Coucal
Green-breasted Bush-shrike
Green-capped Tanager
Green-crowned Racket-tailed Parrot
Green-eyed Frog
Green-faced Parrotfinch
99. Idunella sketi
Iglica kleinzellensis
Iiwi
Ili Pika
Illidge's Ant-blue (Butterfly)
Illiman's Andes Frog
Illinois Cave Amphipod
Imitator Sparrowhawk
Imnadia banatica
Imnadia cristata
Imnadia panonica
Imperial Cave Salamander
Imperial Parrot
Imperial Pheasant
Imperial Snipe
Imperial Woodpecker
Impressed Tortoise
Inaccessible Island Rail
Inagua Island Turtle
Inca Oldfield Mouse
Inca Tern
Incachaca Toad
Incan Little Mastiff Bat
Incilius macrocristatus
Incomati Suckermouth
Independencia Robber Frog
Indian Brown Mongoose
Indian Eyed Turtle
Indian Flying Frog
Indian Giant Squirrel
Indian Pangolin
Indian Python
Indian Sawback Turtle
Indian Skimmer
Indian Softshell Turtle
Indian Spotted Eagle
Indian Toad
Indian Vulture
Indian Yellow-nosed Albatross
Indiana Bat
Indigo Macaw
Indigo-winged Parrot
Indo-pacific Hump-backed Dolphin
Indochinamon bhumibol
Indochinamon cua
Indochinamon guttum
100. Indochinamon mieni
Indochinamon villosum
Indochinese Box Turtle
Indochinese Lutung
Indolestes boninensis
Indonesian Shovelnose Ray
Indri
Indus River Dolphin
Inger's Asian Tree Toad
Inger's Bubble-nest Frog
Inger's Flying Frog
Inger's Robber Frog
Inger's Wart Frog
Ingerophrynus kumquat
Ingolfiella longipes
Inland Hill Rat
Inquisivi Andes Frog
Inquisivi Water Frog
Insulivitrina reticulata
Interior Digging Frog
Interior Robber Frog
Invisible Rail
Inyanga Toad
Inyangani River Frog
Inyo Mountains Salamander
Iodotropheus declivitas
Iodotropheus sprengerae
Iodotropheus stuartgranti
Iomon luangprabangensis
Iomon nan
Iowa Pleistocene Snail
Iphis Monarch
Iquitos Gnatcatcher
Irangi River Frog
Iraq Blind Barb
Iredaleoconcha caporaphe
Iringa Ground Robin
Iris Lorikeet
Irishtown Freshwater Snail
Irmengardia didacta
Irmengardia johnsoni
Irmengardia nemestrinus
Irrawaddy Dolphin
Isabel Giant Rat
Isabela Oriole
Isaka-Ivondro Madagascar Frog