Extinction is a part of the natural order on Earth. Species have
always disappeared because of natural changes in the environment or
biological changes (like diseases). So, why save them? Dr. Stuart
Pimm of the University of Texas said that scientific evidence
strongly suggests that the current rate of extinction is much higher
than the natural rate - about 1,000 times greater than before humans
were on the Earth. Most endangered species protection concentrates on
"fixing" problems that people created, not stopping natural
extinctions.
When the Endangered Species Act was passed in 1973, the U.S. Congress said that endangered species are of " esthetic,ecological, educational, historical, recreational and scientific value." So let's look at those reasons.
ESTHETICS
This means that endangered species are beautiful to look at. Just
like a clean stream or ocean, beautiful mountains, wildflowers and
other parts of nature are to us. Especially for kids like us, we
would like to save beautiful things for our lifetime and for the kids
who come after us.
ECOLOGICAL
Biodiversity is a word we came across a lot when we researched this
site. It means keeping a variety of life forms in our ecosystem.
Think of all the different kids of dog breeds there are and how many
varieties of flowers we have on the Earth. If there were only 10
types of dogs left, people would pay attention! Lack of variety is
also dangerous. New diseases show up when there is less variety and
one disease can wipe out an entire species.
It is also important to have variety in ecosystems - forests,
deserts, wetlands, swamps, prairies, oceans etc. They help keep
varieties of species alive.
We don't think about bacteria as very important, but bacteria in the
soil helps crops grow. Birds control pests and improve harvests.
Plants and trees filter our water and our air.
FOR SELFISH REASONS!
Be selfish about endangered species! Problems with species are often
the first sign that there are problems with people. The
bog
turtle's problems
indicate water quality problems. The bald
eagle's problems with
thin egg shells was an early sign of DDT (a chemical insecticide)
getting into our water and food chain. So protect them to protect
yourself!
EDUCATIONAL
All of the species on our site are being studied by students at all
grade levels. We continue to learn from animals and the problems we
create for them and the solutions that we find for dealing with
them.

HISTORICAL
We have a historical record of extinctions in recent times and the
foissil record of past extinctions. Many species play a part in our
living history.
RECREATIONAL
Millions of people enjoy camping, hiking, bird watching, rowing,
kayaking, backpacking, fishing, hunting, biking and other outdoor.
What kind of nature do you want to enjoy? Probably the best one
available!
SCIENTIFIC
Most of our medicines come from plants and animals. Probably most of
our FUTURE medicines and cures will be found there too. What if the
species of animal or plant to disappear next is the one that would
lead to a cure for cancer or AIDS? can we afford to take that
chance?
MORAL
Don't we
owe to future generations to give them the same opportunities in all
the areas listed above? If we have made problems with our Earth,
isn't it our job to fix them if we can?
The little dwarf
wedge mussel
inhabits creek and river areas with a slow to moderate current and a
sand, gravel, or muddy bottom. These areas must be nearly silt free,
which means that polluted waterways will not support them. Their
appearance, as with many endangered species, indicates a healthy
environment. The construction of dams alters these conditions.
Upstream from each dam, heavy silt deposits (silt is the fine powdery
dirt and sediment that settles in water that moves slowly), combined
with low oxygen levels, makes the area unsuitable for mussels.
Downstream of the dams, water level and temperature changes from
water let out by power generators also hurt. In some areas below the
dams, the river banks have changed because the water flow is lower
and never floods naturally anymore so a sandy, gravel, or muddy
bottom no longer exists. Who caused these changes? WE DID? Who
should fix them? WE SHOULD!
