Page 33 - Amphibian

HOW UNUSUAL! Unusual
This duck-billed tree frog from head shape
Belize may have an unusually
shaped head, but it has the typical
hands and feet of a tree frog
(pp. 50–53), with long fingers and
toes ending in sticky disks, or pads.
The unusual angle at the end of
each finger and toe, above each
rounded disk, is produced by Small
cartilage. This tough, elastic foot with
material enables the last two short toes
finger bones to slide over one Paddle-tail
another. Helped by the disks, newt
the tree frog can prolong its
contact with the surface of a
tree or leaf, even if it moves
a hand or foot.

Fully
webbed foot for Palmate newt
swimming faster

FOUR FEET
These four hind feet Orange
show the variety of striped newt
shapes found in the feet of
newts and salamanders.
Some species – climbers and Flat foot for digging
water dwellers that live on
slippery surfaces, like paddle-tail
newts – have small, fully
webbed feet with very short
toes, sometimes contained
within the web. Male Tiger
palmate newts have fully salamander
webbed feet (pp. 48–49).
The orange striped newt and
the tiger salamander have Webbing almost
flat feet with little or no nonexistent
webbing for digging.
Most salamanders and
Extra cartilage newts have four fingers
helps frog cling on their hands and five
to leaf longer toes on their feet