Friday, March 27, 2009
Wednesday, March 25, 2009
Tuesday, March 24, 2009
Prehistoric fish pioneered sex
From Rueters
By Ben Hirschler
LONDON (Reuters) - Sex has been a fact of life for at least 380 million years, longer than previously thought. Internal fertilization was widespread among prehistoric fish living on ancient tropical coral reefs in the Devonian period, research published in the journal Nature on Wednesday showed.
The discovery sheds new light on the reproductive history of all jawed vertebrates, including humans.
"It shifts how we think about how reproduction evolved. You're a jawed vertebrate and I'm a jawed vertebrate, so this is our own history," said Zerina Johanson, a paleontologist at the Natural History Museum in London.
read the rest here
By Ben Hirschler
LONDON (Reuters) - Sex has been a fact of life for at least 380 million years, longer than previously thought. Internal fertilization was widespread among prehistoric fish living on ancient tropical coral reefs in the Devonian period, research published in the journal Nature on Wednesday showed.
The discovery sheds new light on the reproductive history of all jawed vertebrates, including humans.
"It shifts how we think about how reproduction evolved. You're a jawed vertebrate and I'm a jawed vertebrate, so this is our own history," said Zerina Johanson, a paleontologist at the Natural History Museum in London.
read the rest here
Thursday, March 12, 2009
Saturday, March 7, 2009
Lake Superior Ice Pack - March 3
This picture, provided by those socialists at the NOAA (you know, as Bobby Jindal says, "pictures from space ? who needs that ?") shows a pretty dramatic ice pack on the Great Lake this winter. Hope it bodes well for water levels in the U.P. this summer.
There is an almost ice bridge all the way out to Isle Royale. I don't think that happens very often.
Labels:
celestial happenings,
Lake Superior,
Michigan,
U.P.
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