Re: Redefining eternity

On 2024-12-15, Carol <cshenk@virginia-beach.com> wrote:

Dave Smith wrote:
>

On 2024-12-14 3:21 p.m., Carol wrote:

Jill McQuown wrote:
 

 

I'd love to know where he comes up with these ideas (other than
random Youtube videos).
 
Jill

 
He seems unaware if a domestic pig gets loose, it breeds with wild
ones so of course it waters down the domestic genomes over time.
It's not rocket science to see that.  Happens all the time.

 
 
Apparently they do not even have to breed with wild pigs. Just having
a bunch of bunch of intact males and those hormones will lead to
changes very quickly. They have large litters  at least once a year
and one boar will have a couple dozen sows to mate with.  When a
bunch of domestic pigs gets loose there can soon be a major
infestation of ferals,

>
Dave, are you talking the genetics or the behavior?  They aren't the
same thing (which I'm sure you know) but the way you refer to them,
it's not clear.

Epigenetics is the study of how the environment can alter the expression
of genes in an organism, without changing the DNA sequence itself. In
pigs, epigenetics can cause a barnyard pig to quickly become feral,
growing bigger and hairier in a matter of months.

Here are some ways epigenetics can affect feral pigs:

Transgenerational epigenetic inheritance
When a pig is exposed to an environmental stressor, it can affect the
epigenome of its somatic and germ cells. If the pig is pregnant, the
fetus and its germ cells will also be affected. If these epigenetic
marks remain in the fetus's germ cells, they can be passed on to
subsequent generations.

Phenotypic modifications
Feral pigs can respond to environmental variation through phenotypic
modifications, or plasticity. These are changes that aren't related
to a genetic change.

Evolutionary adaptation
Feral pigs can also adapt to their environment through evolutionary
adaptation over several generations.

According to Google's AI.

--
Cindy Hamilton