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Tidgy's Dad

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Who can tell me what a sea lamprey is, and how it came to be an invasive species in the Great Lakes?
I know a sea lamprey is a primitive type of jawless fish, even more basic than sharks in some respects, they are parasites that suck the blood of their prey with a round, jawless mouth ringed with teeth.
I know nothing of why they are in the Great Lakes, but http://www.umesc.usgs.gov/invasive_species/sea_lamprey.html
may help explain.
Interesting.
 

Tidgy's Dad

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There are. The board that certifies us states that we can only "work" (work includes actual classroom time AND clinical time) 40 hours a week. And we can only work up to 10 hours a day. We HAVE to go to class 2 times a week and clinic 3 times a week. You can only miss 20% of either class or clinical before you're excused from the program. So however many extra hours we can bank is dependent on how many classes we have to take.
Very confusing stuff. Took me months to get it straight.
Well, I think you've explained it splendidly.
 

jaizei

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I only knew because they're invasive in MN also and for some reason I spent time learning about Minnesota's invasive species. I think it started by reading something about worms (also invasive in MN)
 

Tidgy's Dad

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Not an Ostrich? I don't think that's an actual thing.
Correct.
A myth started by the Roman Pliny the Elder and still continuing to this day.
They do lower their heads to ground level and look around and with a mirage effect it looks like they've buried their heads,but they never do.
10pts.
 

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