There are approximately 200 species of scorpion in the world .
Scorpion, an animal related to spiders, mites,
and ticks. The scorpion lives in warm, dry regions and in the tropics. It is
most commonly found in southern Europe, Africa, the western and southwestern
United States, and the tropical regions of the Western Hemisphere. There are
about 1,500 species of scorpions, ranging from about 1/2 inch to 10 inches (1.3
to 25 cm) in length. About 70 species are found in the United States. These
scorpions are usually about 1 to 3 inches (2.5 to 7.5 cm) in length.
Most scorpions are solitary and
will attempt to kill and eat other scorpions that invade their territory. Prior
to mating, the male and female grasp each other's claws and perform a courtship
dance. Several months after mating, the female gives birth to 6 to 90 young,
which are born live one at a time over a period of weeks. They climb upon the
mother's back and cling there for about a month before molting and going off on
their own. A scorpion reaches maturity in one to five years.
According
to fossil records, the scorpion has been in existence for about 400 million
years. Fossil remains reveal very little change between the ancient and the
present-day scorpion.
Why Is a Scorpion’s
Tail So Dangerous?
A scorpion often kills
its prey with venom. But a scorpion doesn’t use fangs to deliver its poison. It
uses the stinger at the end of its tail. First, the scorpion grabs its prey
with its claws. Then it raises its tail up and over its head to sting its prey.
The sting of a
scorpion is very powerful. It kills insects and spiders instantly. And it can
be deadly to larger animals. Still, many animals—such as lizards, snakes, owls,
and mammals—feed on scorpions.Scorpions are nocturnal animals. They hunt and feed
mostly at night. During the day, scorpions hide among rocks, in cracks on the
ground, and under the bark of trees. A scorpion’s sting can be painful, but
most scorpions are not dangerous to humans.
How Are Scorpions Like
Spiders?
Like spiders, scorpions
(SKAWR pee uhnz) are arachnids. They have two main body parts and eight legs.
And like spiders, scorpions have hairs, called bristles, along their legs.
These bristles feel vibrations on the ground. They tell the scorpion, which has
poor vision, when prey is near.
Most scorpions are
larger than spiders. Their body parts are larger, too. Look at the scorpion’s
head. Instead of spider fangs, a scorpion has pincers that grab and tear prey.
Instead of leglike palps, a scorpion has a large set of claws that hold and
crush prey.
Now look at the
scorpion’s body. The last few segments of the scorpion’s abdomen form a long
“tail.”
How Did the Whip
Scorpion Get Its Name?
One look at a whip
scorpion helps you decide how this animal got its name. It looks like a scorpion
with a whip for a tail. But this arachnid is not a true scorpion. Its tail has
no stinger.
Whip scorpions hunt
for insects and other prey at night. Whip scorpions use their front claws as
feelers to help them find their way. When a whip scorpion locates an insect, it
uses its claws to grab and crush its prey.
A whip scorpion
doesn’t have a sting to defend itself, but it does have strong claws. And those
claws deliver a painful pinch! Some whip scorpions have another defense. These
scorpions spray a mist from their tails. The mist is made of a vinegarlike acid
that can hurt and burn an enemy.
Scorpions make up the
order Scorpiones of the class Arachnida.
Scorpion
venom can be deadly to many animals, including humans.
A scorpion's long,
slender body consists of a cephalothorax (joined head and thorax) with six
pairs of appendages and an abdomen. The first two pairs of appendages are used
for catching and mashing prey and for transferring it to the mouth; the last
four pairs are legs. The abdomen is a flexible structure made up of 12
segments; it ends in a sharp, hollow, venom-injecting stinger.
During the day, the
scorpion rests in an underground burrow. It emerges at night to feed on insects
and spiders, which it immobilizes and kills with the sting. The sting is also
used when the scorpion is threatened; the venom of some species is deadly to many
large animals, including humans.
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