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What are the kids asking this
week?
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October 16:
Jan Bakewell's fourth grade class
Varna Grade School
Letter from the Team:
Dear Ms. Bakewell's class:
thanks for noticing that Allison and
I are the only two women on the team!
Very observant on your parts. We need
help recruiting more women paleontologists,
as you'll see when you read Allison's
answer to your question. The other
questions were answered by Paul Sereno
early this morning - just before we
drove out of Agadez on our way to
Camp 3. Your questions also tell us
that you're spending some time on
the website (which makes us feel good,
too). These are very thoughtful questions
about not just the process of paleontology,
but also looking critically at the
field - that is, what is the science
of paleontology all about? We hope
you enjoy the answers we're sending
- and keep an eye on the website!
We've got an unbelievable site to
excavate at Camp 3 and it's going
to tell us a great story about life
in Africa 130 million years ago. -Gabrielle
-
Allison and Gabe
are the only two women on your expedition
team. Why do you suppose so few
women are interested and involved
in paleontology?
Answer:
I think that many women are interested
in paleontology, but because of
its history it has been hard for
women to become established professionally
in vertebrate paleontology (VP).
As with many of the natural sciences,
paleontology has its formal origins
in the 1800s - a time when women
were discouraged from pursuing careers
of any type, but especially sciences.
Women who did have careers outside
of the home were generally teachers
or nurses.
Vertebrate paleontology is considered
a "field science" because we spend
a lot of time outdoors doing physical
work. Some people feel that women
aren't strong or determined enough
to do such work (they are very wrong!)
I decided to become a paleontologist
when I was in the fourth grade.
I really liked fossils and the outdoors.
I love solving mysteries and the
history of the earth is the toughest
one I know. Each fossil is a piece
of the puzzle and brings new information
to light.
Paleontology is the perfect career
for me because I have many interests:
I enjoy problem-solving, math and
statistics. I also love being outdoors
and working hard. In addition, I
enjoy traveling, writing, and critical
thinking. Most of all, I love doing
my own research and sharing my findings
with others. I can wear whatever
I want to work, and I have the freedom
to come up with my own projects
and my own style of research. I
could get a job at a museum, or
university anywhere in the world.
And the best part of my job is that
it takes me all over the world!
I think that women absolutely belong
in VP. I have had very few role
models to follow since I decided
my career path and I would like
to see many more women in VP. I
encourage any girl to pursue her
interests. For all of these reasons
- historical and personal - I hope
I can be a role model for young
women who want to be paleontologists,
too.
-
We really love the
photo gallery, and we are especially
curious about the Camp Life picture:
mmmm-1. What is that creature? It
looks like it is a caterpillar or
a grub, and did he really eat it?
Answer:
It was a grub that would have metamorphosed
into an adult insect of some kind.
Jeff found it while digging. It
is a great picture because it looks
like he is about to eat it-but actually
he didn't. There are a lot of strange
insects and plants that you encounter
when traveling to very different
places like the Sahara.
We don't eat insects - although
some people here do. What we mainly
eat is food that we bring with
us from the states. We brought
a ton and a half of dried and
dehydrated food, including rice,
pasta, and couscous. We use dried
soup mixes, spices and rehydrated
vegetables to make sauces and
eat a lot of granola for breakfast.
We have to avoid canned goods
because they are too heavy, and
nothing that needs refridgeration
because we don't have a refrigerator.
You can check out our list of
supplies online to get a better
idea of some of the other foods
we bring with us.
-
About how many people
does it take to reconstruct a dinosaur
: from the research prior to the
expedition, to when the fossils
are found in the field, through
the cleaning process; to the final
skeletal reconstruction? How long
does this process usually take?
Answer:
Probably about a hundred people
have a hand on the dinosaur skeleton
before you see it mounted in the
museum. First there is the team
that digs it up. Then there are
people that help transport the
plaster-covered bones, technicians
that clean the bones, others that
cast and mold the bones, artists
that sculpt missing bones using
the ones that are preserved, students
and paleontologists that study
and measure the bones, and then
a team that works with metal to
put the bones together as a skeleton.
This process takes years. Some
dinosaurs found many years ago
have yet to be cleaned or studied
and stored in the basements of
museums and can be "rediscovered"
by paleontologists who weren't
even on the expeditions that uncovered
them.
The fastest we have developed
a skeleton after its discovery
is about one year when we worked
on the 27 foot long skeleton of
the meat-eater Afrovenator.
Jobaria is much bigger
and took a year and a half.
-
How do you know
where are the best places to look
for dinosaurs? Do you use any data/
materials from NASA?
Answer:
We often use maps, some of which
were made from high-flying airplanes.
We used a satellite image once
that was very helpful. You could
see the difference between the
areas that were sand-covered and
the areas that exposed bare rock.
We wanted to find areas of bear
rock because that is where you
could find the fossils. This image
was developed with infrared light
rather than the light that we
see with our eyes.
Most of the time, however, we
use three sources of information
to guide us: reports of other
paleontologists, geology maps
that show us where the dinosaur-age
rock is located, and topographic
maps to show us how to get there.
Then it's the hard work of prospecting
on the ground and using the information
gathered by walking around for
hours to help locate the best
places.
-
Why do you call
the Nigersaurus bizarre? What makes
it so different from the other discoveries?
Was it just the number of teeth,
or are there other peculiar things
about it? Thank you for letting
us share this expedition with us!
Answer:
The number of teeth is very
unusual but the shape of its jaws
is, well, bizarre! The mouth expands
to each side beyond the side of
the skull, sort of like a hammerhead
shark. There is no dinosaur that
has ever been found with jaws shaped
like that. The rest of its body
is not that strange. Nigersaurus
was a distant cousin of Diplodocus.
It walked on four legs and had a
long tail. But the shape of its
skull will open some eyes pretty
wide when we get it together!
Denise Edelson
's 3rd Grade Class
Solomon
School
Letter from the Team
Dear Mrs. Edelson's class,
Hi! Thanks for asking what it takes
to become a paleontologist - it's something
that people come at from all different
directions. But you can start now -
as you'll learn from Paul's answers.
By the way, Paul answered these early
this morning on his way out to Camp
3. One of the things we hope to find
is a pretty complete skeleton with as
many bones as we can get. You're thinking
like us, now!
Stay warm in Chicago - you can bet
we're pretty hot over here. Make sure
to get your teacher to tell you lots
of stories about HER paleontology experience
this summer with Project Exploration
and the Junior Paleontologists. She
can really excavate!
-Gabrielle
-
How did you learn
to become a paleontologist?
Did someone help you?
Answer:
I learned about fossils first when
I visited a large rock quarry not
far from Chicago. I found a fossil
worm and my brother found a fossil
leaf. In my grade school, I saw a
film about a paleontologist who found
human fossils in Africa. I thought
that was hard but very interesting
work. Later, I learned more about
fossils at the Field Museum. Many
years later, I took some classes about
fossils in college. My teachers helped
me learn about fossils. I learned
the most, however, from studying books
about fossils on my own. Eventually,
I had the chance to lead an expedition
to find the fossils that nobody else
had found.
-
Have you ever found
all the bones to one dinosaur? If
yes, what dinosaur was it? How many
bones did it have?
Answer:
I have never found a perfectly
complete dinosaur skeleton. There
are many small bones in the skull
and skeleton, and it is nearly impossible
that they all are preserved if the
skeleton was moved in any way after
its death. After most dinosaurs
die, their skeletons are moved by
predators, scavengers, and water
and wind, before they are finally
buried and fossilized. Then, some
part of the skeleton must be exposed
on the surface so that you can find
it. That's when a lot of bones can
get lost or damaged --as the skeleton
is eroding on the surface of the
ground before its discovery. The
closest I have come to discovering
a complete skeleton is with the
little dinosaur Eoraptor,
one of the oldest dinosaurs. Now
there are two very good skeletons.
One lacks only the tip of the tail.
The other lacks only part of the
skull and a few toes.
-
Which bones are
the hardest to find? Why?
Answer:
The small bones - or the skeletons
of small dinosaurs that are composed
of small bones. That's because these
bones are much more delicate and
easy to destroy than the larger
bones. A large bone can roll a long
way down a river after a dinosaur
dies and get buried and fossilized.
But a small one will break into
a lot of pieces and disappear. So
it's the small dinosaurs that generally
are hardest to find, and the smallest
bones, like the tiny ear bone, that
are almost always missing.
-
Where will you
put your new 600-toothed dinosaur?
Answer:
Right now some of the dinosaurs
that my teams and I have found around
the world are on display in different
museums, but there is no single
place where you can see them all.
I hope that in the future, the 600-toothed
dinosaur can join the others in
a big exhibition space devoted to
the dinosaurs that once lived on
Africa.
-
Could you find
fossils in quicksand?
Answer:
There is no proven case of fossilization
in quicksand. It is a very rare
kind of place for an animal to die.
Much more common is mud. A lot of
animals get stuck in the mud near
water holes or other soft spots,
and they can get buried and fossilized.
Some animals have been covered by
sand in sand storms. The majority
die right where they spend most
of their lives and are buried by
rivers and floods.
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