Am I the only one that appreciates those people? I actually might be one of those people myself, the jury's still out.
I have a coworker that LOVES math, and he dumps topology and set theories on me all the time. I don't know what half of it means, but I find the concepts very interesting.
Sea anemones are relatives of the jellyfish. They have these tiny hairs growing on them that they use to feed by stunning fish, shrimp, zooplankton, and so on.