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| The Dissectors! |
Today we went to the Arizona Science Center to
learn about horseshoe crabs. Not only did we learn about horseshoe crabs, but
we also dissected one.
When
we arrived at our sciency classroom, we watched a video about baby horseshoe
crabs swimming above the beautiful colored coral. It was funny to watch the
video because the baby horseshoe crabs were so light, they would float upside
down.
After
the interesting and funny video, we looked at a diagram of the inside of the
horseshoe crab and the outside of the horseshoe crab. Now it’s time for an
interesting fact about these incredible and weird crabs. Think about our
heart, it is sort of in a circle/oval shape. The horseshoe crab’s heart is a thin line like a shoelace. Isn't that weird? The horseshoe crab’s heart is a
white color, located under the shell, and it is the length of its own
body.
Now
it is time for the best part of the class: the dissection. This is my favorite part
because we can get covered in horseshoe crab eggs and horseshoe crab claws. Our
dissection started out by cutting the shell so it could pop off really easily, which did not work for Samantha and me. We spent practically the whole class
trying to remove the horseshoe crab’s shell. Finally when the shell
popped off, I found some brown goo that looked like chewed up meat, but then I asked
the instructor what they were, and she said they were eggs. It was hard to
believe. There were a million of those eggs. We had a horseshoey time at the Arizona
Science Center.
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| Before the dissection! |
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| The mouth is located between the two legs! |
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