How
Many Insect Species Exist?
We have compiled a lot of different insect facts
and interesting information into some of the most
frequently asked questions (FAQS) about insects
that you will find anywhere! There are many more
kinds of insects on earth than there are of any
other kind of living creature! Insects have the
greatest number of individuals living of at any
one time. It is estimated that there are approximately
10 quintillion (10,000,000,000,000,000,000) individual
insects alive. There are 1,017,018 species of
insects in the world with some experts estimating
that there just might be as many as 10 million
species out there. That means you could spend
your whole life looking at different kinds of
insects and you'll never be able to see them all.
It's hard to imagine, but 95% of all the animal
species on the earth are insects! There are so
many insects with different insect characteristics
we had to limit our insect facts to the top 100
most interesting insect facts . To give you an
idea just how many insects there are consider
that on average there are millions of insects
living on every single acre of land! Over one
million species have been discovered by scientists
and entomologists as they think there might be
more than ten times as many insects than we currently
know about which haven't even been named yet!
Insect
Orders, Families, and Species
Insects are arthropods (a type of invertebrate,
animals that lack a backbone). These insect creatures
are divided up into 32 orders, or groups. The
largest insect order is the beetles (Coleoptera)
with 125 different families and around 500,000
different species. In fact, one out of every four
animals on earth is some type of beetle bug.
Insects in Terms of Biomass Returns Surprising
Results
Scientists estimate that 10% of the animal biomass
of the world is composed of ants, and another
10% of termites. This means that 'social insects'
could possibly make up an incredible 20% of the
total animal biomass on this planet! There isn't
anywhere on land where you can go and not find
insects. Even on the frozen extremes of the Arctic
and Antarctica you can find insects alive
and active during the warmer months. Insects are
ubiquitous, they are in the soil beneath your
feet, in the air above your head, on and in the
bodies plants and animals around you, as well
as on and in you. They are incredibly adaptable
creatures and have evolved to live successfully
in most environments existing on earth. The only
place where insects are not commonly found is
in the oceans. Insects eat more plants than all
other creatures on earth combined! They are also
tremendously important in the breakdown of plant
and animal matter. Without them, we would have
a world covered in dead plants and animals! In
addition to all of this insects are a major food
source for a wide range of animal species.
Common Characteristics of Insects
Insects have an amazing number of differences
to their size, shape, and behavior, but they all
have 4 characteristics in common: they have three
body parts - a head, thorax, abdomen, and they
must have six jointed legs and two antennae to
sense the world around them from inside their
exoskeleton (outside skeleton). Entomologists
believe that insects are successful because of
their protective shell (exoskeleton), they are
small, and most of them can fly. Insects with
their small size and ability to fly helps them
to escape from enemies and travel to new
environments. Because they are so small they need
only need small amounts of food and can live in
very small cracks and spaces. Insects are an extremely
diverse type of animal. They are cold-blooded,
so the rate at which they grow and develop depends
on the temperature of their environment. Insects
typically pass through four distinct life stages:
egg, larva or nymph, pupa, and adult. Eggs are
laid singly or in masses, in or on plant tissue
or another insect. There are two general types
of insect metamorphosis: simple metamorphosis
and complete metamorphosis. In a complete metamorphosis
the wings develop internally during the larval
stages. The larval stages look quite different
from the adult. Between the last larval stage
and the adult stage there is a pupal stage which
usually is inactive. In simple metamorphosis the
wings develop externally during the larval stages.
The larval stages, which are called nymphs, look
very similar to the adult insect. There is no
pupal stage.
For more very interesting insect facts and insect
information you can browse through our insect
fact questions and also find some valuable and
interesting information on the specific insects
located on our product pages.
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