Our group investigated Crayfish and I learned a lot of interesting facts about this particular organism. First of all, they are omnivores and they would eat just about any organism that won't eat it first. They have three stages of life, but do not go through metamorphis because they are fish, not insects. I learned that Crayfish were one of the species that inspired Charles Darwin and other scientists to study plate tectonics because different species are found scattered around the world. Crayfish hatch as juvenile crayfish and do not go through larval stage, and they hatch from 2-20 weeks after the eggs are fertilized.
Blackfly: 255 species and require blood to create eggs
Gilled Snail: fertilization occurs internally and spend entire life span underwater
Caddisfly: long body with 2 sets of wings and they help control algae population
I loved the presentations. When I first found out about spending a day on presentations, I wasn't too excited. But the material was fascinating and the presentations were so interesting. The fact that we didn't know what to expect was the biggest challenge. I already know how to research, but I didn't know exactly what the teachers were looking for. To remedy this, we just did our best to provide as much information for our teachers and audience as we could and tried to cover the topic thouroughly. This project was a good experience for future reference and our hard work set the stage for other projects.
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