Amphibia are a class of vertebrates that includes toads, frogs, newts and salamanders. Amphibians generally spend part of their lives in water and part on dry land. They develop in two stages where the larval state is generally aquatic, and they may breathe with gills. Then they go through a metamorphosis, which adapts them to life on dry land. Their skin has no scales, is soft and moist, and they lay their eggs in moist environments due to the lack of an amniotic membrane. Amphibians are cold-blooded, or ectothermic, animals, which have a variable body temperature that's regulated by their external environment. Because of this many amphibians hibernate during the winter.

Reptiles are also cold-blooded vertebrates that breathe with lungs, and have skin covered in scales. Most reptiles are amniotic egg layers, though some give birth to their young. The classification of reptiles would include alligators and crocodiles, turtles and tortoises, lizards and snakes, and the endangered tuatara of New Zealand.

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BIRDS

FISH,
UNDERWATER

REPTILES,
AMPHIBIANS

FLOWERS,
PLANTS

INSECTS,
ARACHNIDS

MAMMALS

 AMPHIBIANS 
 A-Z 

A,B,C,D,E - Amphibian

African clawed frog, Xenopus laevis

Amazon leaf frog

American toad, Bufo americanus

arrow poison frogs

Blanchard's cricket frog, Northern

bullfrog, Rana catesbeiana

bullfrog, South American

California newt

cane toad

chorus frog, western

Colorado river toad

Cope's gray tree frog, grey, Hyla chrysoscelis

cricket frog, Blanchard's, Northern

dendrobates, poison arrow treefrogs

Eastern American toad, Bufo americanus americanus

eft, eastern red-spotted newt

ensatina salamander


F,G,H,I,J - Amphibian

frog, African clawed, Xenopus laevis

frog, arrow poison, dendrobates

frog, bullfrog, Rana catesbeiana

frog, cricket, Blanchard's, Northern

frog, glass, centrolene genus

frog, horned

frog life cycle

frog, leopard, plains

frog mutation, deformed, mutated

frog, smoky jungle

frog, southern tomato

gray tree frog, grey, Hyla versicolor

great plains toad

green tree frog, American


K,L,M,N - Amphibian

leaf frog, Amazon

leaf frog, Mexican

leopard frog, plains

newt, California

newt, Chinese fire-bellied

newt, eastern, red-spotted

Northern cricket frog, Blanchard's


O,P,Q,R - Amphibian

Pacific tree frog

plains leopard frog

poison arrow frog, azure

poison arrow frog, harlequin


S,T,U,V - Amphibian

salamander, ensatina

salamander, Jordan's, red-cheeked, Appalachian woodland

salamander, marbled

salamander, tiger

spadefoot toad, desert, New Mexico

tadpole, frog larvae, tadpoles

toad, American, Bufo americanus

toad, cane

toad, Chinese, Oriental fire-bellied

toad, Colorado river

toad, great plains

toad, New Mexico spadefoot

tree frog, gray and Cope's gray, grey

tree frog, green, American

tree frog, Pacific

tree frog, pine woods

tree frog, red-eyed

toad, spadefoot New Mexico

tree frog, white-lipped

tree frog, White's


W,X,Y,Z - Amphibian

western chorus frog

Xenopus laevis, African clawed frog

 REPTILES 
 A, B, C, D, E, F 

A - Reptile

adder, puff

African Nile crocodile

agama, southern rock

Aldabra tortoise, giant tortoise

alligator, American

alligator trap, Seminole

alligator, Chinese, Yangtze

alligator snapping turtle

American alligator

American crocodile

anaconda, green

anole, green

Arizona black rattlesnake

Arizona ridge-nosed rattlesnake


B - Reptile

banded rock rattlesnake

black iguana, spiny-tailed

black rat snake, black snake

black-tailed northern rattlesnake

blue-tongued skink

box turtle, eastern

box turtle, ornate

brown snake

bullsnake


C - Reptile

caiman, Paraguayan

caiman, spectacled

chameleon, flap-neck

chameleon, Senegal

chameleon, veiled, Yemen

Chinese alligator, Yangtze

coachwhip, red

coast horned lizard

common lancehead, Fer-de-lance

common snapping turtle, Chelydra serpentina

copperhead, Osage

copperhead, trans pecos

coral snake, western

cottonmouth, western

crocodile, African Nile

crocodile, American

crocodile, Orinoco


D - Reptile

desert tortoise

diamondback rattlesnake, eastern

diamondback rattlesnake, western


E - Reptile

eastern diamondback rattlesnake

eastern box turtle

eastern fence lizard


F - Reptile

fence lizard, eastern

fence lizard, western

Fer-de-lance, common lancehead

five-lined skink, Eumeces fasciatus

flap-neck chameleon

Florida softshell turtle

 REPTILES 
 G, H, I, J, K 

G - Reptile

Gaboon viper, Gaboon adder

Galapagos tortoise

garter snake, plains

garter snake, western terrestrial

gavial, gharial

gecko, leopard

gecko, ocellated dwarf

gharial, gavial

giant tortoise, Aldabra tortoise

gila monster

gopher snake, bullsnake

green anaconda

green anole

green iguana

ground rattlesnake - see pygmy


H - Reptile

hawksbill sea turtle

horned lizard, coast

horned lizard, mountain short-horned

horned lizard, southern desert

horny toad - see horned lizard


I - Reptile

iguana, black, spiny-tailed

iguana, green

iguana, land

iguana, marine


K - Reptile

kingsnake, sonora mountain

 REPTILES 
 L, M, N, O, P 

L - Reptile

land iguana

leopard gecko

lizard, agama, southern rock

lizard, anole, green

lizard, fence, eastern

lizard, fence, western

lizard, horned, coast

lizard, mountain short-horned

lizard, six-lined racerunner


M - Reptile

marine iguana

Mexican west coast rattlesnake

milk snake, red

monitor, Nile

monster, gila

mountain short-horned lizard


N - Reptile

Nile crocodile

Nile monitor

northern water snake



O - Reptile

ocellated dwarf gecko

Orinoco crocodile

ornate box turtle

Osage copperhead snake


P - Reptile

Paraguayan caiman

plains garter snake

pond turtle, western

prairie rattlesnake

prairie ringneck snake, ring-necked

puff adder

python, reticulated

 REPTILES 
 Q, R, S, T, U 

R - Reptile

racerunner lizard, six-lined

rattlesnake, Arizona black

rattlesnake, Arizona ridge-nosed

rattlesnake, banded rock

rattlesnake, black-tailed northern

rattlesnake, eastern diamondback

rattlesnake, Mexican west coast

rattlesnake, prairie, western

rattlesnake, twin-spotted

rattlesnake, western diamondback

red coachwhip, racer

red-eared slider turtle

red milk snake

reticulated python

ringneck snake, prairie, ring-necked


S - Reptile

sea turtle, hawksbill

sea turtle, green

Senegal chameleon

six-lined racerunner lizard

skink, blue-tongued

skink, five-lined, Eumeces fasciatus

snake, black rat, black snake

snake, brown

snake, bullsnake

snake, copperhead, Osage

snake, coral, western

snake, copperhead, trans pecos

snake, Fer-de-lance, common lancehead

snake, garter, plains

snake, garter, western terrestrial

snake, gopher, bullsnake

snake, kingsnake Sonora mountain, Huachuca

snake, rattlesnake - see rattlesnake

snake, puff adder

snake, red coachwhip

snake, red milk

snake, ringneck, prairie

snake, water, northern

snapping turtle, alligator

snapping turtle, common, Chelydra serpentina

softshell turtle, Florida

southern desert horned lizard

southern rock agama

spectacled caiman

spiny softshell turtle, western

spiny-tailed iguana, black


T - Reptile

tortoise, Aldabra, giant tortoise

tortoise, desert

tortoise, Galapagos

tortoise, yellow-footed

trans pecos copperhead

turtle, box, eastern

turtle, box, ornate

turtle, red-eared slider

turtle, sea, hawksbill

turtle, sea, green

turtle, snapping, alligator

turtle, snapping, common, Chelydra serpentina

turtle, softshell, Florida

turtle, spiny softshell, western

turtle, wood

twin-spotted rattlesnake

 REPTILES 
 V, W, X, Y, Z 

V - Reptile

veiled chameleon

viper, Gaboon

W - Reptile

water leguaan

water snake, northern

western coral snake

western cottonmouth

western diamondback rattlesnake

western fence lizard

western pond turtle

western rattlesnake - see prairie rattlesnake

western spiny softshell turtle

western terrestrial garter snake

wood turtle


Y - Reptile

Yangtze alligator, Chinese

yellowfoot tortoise

Yemen chameleon, veiled