By D. A. (Midwested) on Thursday, June 12, 2014 - 11:25 pm:
Who saw the recent Nova on Monarch butterflies?
Learning their life cycle and migratory pattern
was fascinating.
The first 3 generations last one month each as
they make their way (in 3 steps) from a small area
in Mexico to wide areas of Canada. Then the 4th
generation lives for 9 months and travels the
entire 2000 miles from all over Eastern Canada
back to a 60 square mile section of Mexican
mountains.
How do they keep track of which generation they
are part of? How do they navigate? Birds I can
sort of fathom but insects?
By Allen W. Philley (Allen) on Friday, June 13, 2014 - 08:01 am:
Pretty.