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RE: Developing a Developmental Lab #4: Sea Urchin Fertilization
This looks like fun. I am wondering how many students mix the urchin anus and mouth... :D
What happened to the eggs after the experiments? Have you been growing them or have there just been classified as waste?
Few students made the mistake because the mouth and anus are pretty distinct and it's hard to poke the anus with a needle :P
We threw out all the eggs after the experiments. No real need for em and no one wanted to try growing sea urchins.
Thanks for the extra bits of information (I have never checked an urchin from the very close to be honest... so I didn't know ;) )