National Geographic Kids USA - September 2017

(Marvins-Underground-K-12) #1
SOUDERS / GETTY IMAGES (WALKING); INGO ARNDT / MINDEN PICTURES (FOOT, ALL EYES); MICHAEL DURHAM / MINDEN PICTURES (IN RAIN); CHRIS WARE (COMIC)STEPHEN DALTON / MINDEN PICTURES (LEAPING); CHRISTIAN ZIEGLER / MINDEN PICTURES (EATING); CHRISTIAN ZIEGLER / MINDEN PICTURES (EGGS); PAUL

Stick to It
Slick surfaces aren’t a problem
for this frog. It can easily clam-
ber across wet leaves. Instead
of hopping, the animal takes
careful steps like a pro rock
climber. It also has rounded toe
pads that stick to surfaces like
suction cups, and its feet pro-
duce gluey mucus to help it grip
slippery surfaces. It can even
cling to the undersides of
leaves—Spider-Man-style—
to hide from predators. That’s
a sticky surprise.

Escape Hatch
Female red-eyed tree frogs
deposit eggs on leaves that
overhang ponds. So when they
hatch about a week later, the
tadpoles simply drop into the
water, where they’ll develop into
young frogs. But what if a wasp
or snake finds the eggs before
they hatch?
Red-eyed tree frogs forming
in their eggs(called embryos)
can hatch up to two days early
if they feel jiggling from an
attacking predator. “They basi-
cally break through the egg and
dive into the pond,” researcher
Karen Warkentin says.

Ambush and Eat
A red-eyed tree frog might
jump through the air to get
closer to an insect it wants
to eat. This animal also uses
the element of surprise. Known
as an ambush predator, the
amphibian sometimes hides
among the leaves in its rain
forest home. The frog waits
patiently until a tasty-looking
moth or cricket comes within
striking distance. Then it fires
out its long, sticky tongue to
capture the insect and pull the
meal into its mouth. Sounds
like this frog is all about fast
food.

Males may
wrestle over
territory or
mates.

Females
grow about
one inch longer
than males.

lunch


Frog Formation
Red-eyed tree frogs may
be some of the most rec-
ognizable animals on the
planet. But it takes time
for them to develop their
look. Check out the life
stages of this incredible
amphibian.

Three days after the eggs are laid ... About three days later ...

A FROG
LEAPS TO
CAPTURE
A TASTY
CRICKET.

UNDERSIDE
OF FOOT

A HATCHING
TADPOLE
DROPS FROM
AN EGG
CLUSTER.

caught it!


18 SEPTEMBER 2017

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