I really learned a lot about crayfish during this project. Our group divided the tasks among the three of us and I got the task of researching the adaptations of crayfish. I learned that crayfish have eyes on movable stalks that allow them to see in different directions. They also can eject chemical signals that allow them to identify one another and signal mating. Crayfish can also change color to blend in with their surroundings. The study of crayfish actually led to the theory of plate tectonics, because crayfish are found virtually everywhere. They originated for a marine ancestor when the earth was the super continent of Pangaea.
Dobsonfly
- They have hooks under their bellies that allow them to hang on to rocks.
- They have very strong jaws.
The Gilled Snail
- They can live in still or quiet areas.
- Their shell has a trap door that allows them to protect their selves.
Dragonfly
- They grow up to 1.5 to 3 inches in length
- They flap their wings 30 times per second.
I really enjoyed the information that I found out about crayfish. It was really interesting to find out that the study of crayfish actually led to the study of plate tectonics. I never saw crayfish as that big of a deal before, but they are. I also really enjoyed working with my group and enjoyed the information that they found out also.
The most challenging thing about this project was finding enough information. I found it difficult to find information about how crayfish have changed since they originated. I overcame this by not giving up. I just kept researching and searching websites until I found enough information. By continuing to search I also found some websites that really added to the project. Overall it was a really great and fun project!
No comments:
Post a Comment