Page 32 - One Million Things: Animal Life - The Incredible Visual Guide

Flying frog

AMPHIBIANS outstretched toes allows frog
Webbing between
to glide between trees
Most amphibians spend part of their lives on land
and part in water, where they mate and breed.
Females lay shell-less eggs, which hatch into Goliath bullfrog
swimming larvae called tadpoles that breathe using 3
gills. As they grow into adults, amphibians develop
lungs and they can also breathe through their skin. Brazilian gold frog
There are three groups of amphibians—the frogs and
toads, the salamanders and newts, and the less
familiar caecilians.

Smooth skin is moist
and lacks scales

Asian
horned
toad

Poison dart frog Leopard frog

Male carries string
of eggs wrapped
around its hind legs
Midwife toad

European
2 NEWTS
common
frog Newts have long slender bodies and
their tails are often flattened to assist
Leopard frog movement in water, where many adult
newts spend much of their lives. Some
newts carry out courtship displays,
such as tail swishing, to attract a
Frog
tadpoles mate during the breeding season.
1 MUDPUPPIES Tail moves from side
These North American salamanders to side to propel Great-crested newt
newt forward
spend their entire lives underwater.
1 Mudpuppy
Unlike most other salamanders,
mudpuppies retain their bright red 2
external gills into adulthood. They
live in streams and rivers, where they
feed on fish, crayfish, and mollusks.

External gills
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