The New Childrens Encyclopedia

(Marvins-Underground-K-12) #1
AMAZING ARTHROPODS

OLength 4 in (10 cm)
OLegspan 7 in (18 cm)
OPrey Insects, mammals, lizards
OLocation western central Mexico

The red-kneed tarantula hunts at
night. It can sense smells, tastes,
and vibrations through the ends of
its legs. Females live to 30 years;
males live 3–6 years.

Red-kneed tarantula
Euathlus smithi

 FATAL FANGS Tarantulas bite into
their prey with hollow fangs, injecting
potent venom to paralyze their victim.

SPIDER ATTACK
There are more than 40,000 species of spider, and
all of them are venomous. Most are harmless to
people—their venom is deadly only to their prey.

OLength 1 ⁄ 4 –^3 ⁄ 4 in (8–17 mm)
OLegspan Up to 3 in (7 cm)
OPrey Small flying insects
OLocation Europe and Asia

Orb weavers spin webs in
grasses or scrub. Females
can change color over
several days to
camouflage themselves.

Four-spot orb weaver


Araneus quadratus


Fen raft spider
Dolomedes plantarius

Peacock parachute spider
Poecilotheria metallica

Do not disturb Spiders
don’t usually attack people,
but some are dangerous if
they are disturbed and bite
in self-defense.
Mediterranean black
widow spiders have
enough venom to kill a
human. Females usually
have the deadliest bite.

Trapped! Many spiders
do not hunt, but wait for
prey to come to them.
Using sticky silk spun
from a gland in its
abdomen, the orb weaver
spider creates a web to
trap passing insects. The
victim is then killed with
a deadly bite.

OLength 21 ⁄ 2 in (6 cm)
OLegspan 7 in (18 cm)
OPrey Insects, baby birds, lizards
OLocation Southern India

This spider is also known as the Gooty
sapphire because of its blue coloring.
While females live to 12 years, males
live only 3–4 years. It is very rare and
faces extinction because of habitat loss.

BEWARE OF
THE SPIDER

OLength Females 1⁄ 2 –1 in (17–22 mm)
Males^1 ⁄ 2 –^3 ⁄ 4 in (13–18 mm)
OLegspan Up to 3^1 ⁄ 2 in (9 cm)
OLocation Europe

This spider uses its feet
to sense the movement of
prey in pools of water—
then it runs across
the water to catch it.

?^12?

30

LIVING WORLD

(c) 2012 Dorling Kindersley. All Rights Reserved.(c) 2012 Dorling Kindersley. All Rights Reserved.
Free download pdf