M Database Inspector (cheetah)
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|Wed, Jun 20 2007||80||Evolution||
This is why it is believed that Charles Darwin developed most
of his theories during his travel aboard the HMS Beagle,
and in the Falkland Islands and the Galapagos Islands,
where he found many species very much alike other species in
the near continent of South America,
but those species were not present in England
and the rest of Europe in anywhere remotely the same level of
This is the slow process by which new species are created.
Tipycally, it starts with the migration of an individual to
a new territory, or with a gradual change in climate,
or by a single abrupt change in environmental conditions,
later to leave the teritories as stable as before,
with a new set of condition for the contained organisms to
Mutations are always there and plentiful.
They don't make evolution happen.
Natural Selection makes evolution happen by selecting
the Right mutations, discarding all others.
|Fri, Apr 18 2008||100||Migration||
He was exchanging letters with the swiss ant expert
about this ant, that is just like the British ant, but not exactly.
What does that mean?
Could the british ant in ancient times somehow have migrated
to England, and later evolved there to become slightly different?
During those times, most mail with Europe was carried by pigeons.
So fascinated was he with exchanging science ideas,
that he started hanging out with the postal servicemen.
The pigeon growers.
He even raised pigeons for six years just to see
if he can produce a pigeon with a red tail.
But the letter from the swiss ant scientist is long overdue.
So he walks over to the local post office and demands:
Where is my pigeon?
Uhm, well, we've been having some problems with that lately.
Along the coast there are hawks waiting for the exausted pigeons.
Your pigeon may have been someone's dinner.
Furiously, he walks over to the beech,
endlessly searching for his pigeon.
With the eyes of the scientist that he is,
he spots their wedding ring in a regurgitated pellet of a hawk.
All that is left of his pigeon are some seeds she picked
up for the trip and never managed to digest.
So he takes the seeds, and lets them germinate,
and he sees the most beautiful flowers -
which he knows well from his back yard.
So that is how they migrated to England!