Two Excursions In One Day?

Rosalie B. wrote:

> "Greg Mossman" <mossman@qnet.com> wrote:
>

>>OK, so there's the case of the retarded dolphin. But we often involuntary
>
>
> No it is NOT a retarded dolphin. It is just that you do not know how
> they perceive the world.
>
> With horses, when they approach a jump because their eyes are on the
> side of their heads (so they can see predators behind them which is
> why sometimes they wear blinkers so they won't get spooked by the
> carriage that they are pulling) which means that when they are at a
> take-off point for the jump they can no longer see the jump because
> their nose is in the way. It's a wonder any horse ever learned to
> jump anything.
>
> Maybe dolphin's eyes are adapted to see in the water and their vision
> out of the water is blurred. Maybe the net doesn't show up well on
> their sonar. Whatever - you can't make the assumption that they don't
> jump out because they are retarded.

An interesting point you've brought up... Dolphins, like horses, have
eyes on the side of their head - they have no depth perception (we don't
either with just one eye). This is why their sonar goes wild just
before attempting to grab a snack. A dolphin's sonar picks up the net
just fine, and according to the experts I've met, they believe the net
"appears" to be close enough to the surface as to be interpreted as an
impenetrable barrier, and sans depth perception, don't "see" a small gap
above the top of the net. The nets I've seen are all fashioned this
way. Also interesting, when I was on the inside of said net, dolphins
visited regurlarly, but when on the outside of the net, they would swim
by me on the inside but take no notice of me. So, I believed I was
either blinded by the net or they just weren't interested in something
outside at that time. This behaviour has not only been reported by
others with the same opportunity, but is well documented by Navy
training divers. It is my understanding that this knowledge is a
significant factor in their training protocol.

It is also significant to know that dolphins learn unatural behaviour
(jumping circus hoops and such) individually, not learning by watching
others of their adopted pod. OTOH, if the behaviour is natural they
learn from others rather quickly. I learned this from watching PBS,
which I think Greg should do a lot more of.



--
jer email reply - I am not a 'ten'
"All that we do is touched with ocean, yet we remain on the shore of
what we know." -- Richard Wilbur

"Lee Bell" <leebell@ix.remove.netcom.com> wrote in message
news:ij8Zc.7381$JT3.6861@newsread3.news.atl.earthl ink.net...

> Perhaps his doesn't either. BTW, I'm not positive, but I don't think Greg
> was planning on Fucking any dolphin.

Actually, a blowhole sounds sorta interesting. Dual purpose.

"Greg Mossman" <mossman@qnet.com> wrote in message
news:41352cf4$0$107$6c56adcd@news.qnet.com...
> "Lee Bell" <leebell@ix.remove.netcom.com> wrote in message
> news:ij8Zc.7381$JT3.6861@newsread3.news.atl.earthl ink.net...
>
> > Perhaps his doesn't either. BTW, I'm not positive, but I don't think
Greg
> > was planning on Fucking any dolphin.
>
> Actually, a blowhole sounds sorta interesting. Dual purpose.

You forget, we've met. I well know that your a boobs and leg kind of guy
and dolphins have neither.

Lee

"Greg Mossman" <mossman@qnet.com> wrote:

>"Rosalie B." <gmbeasley@mindspring.com> wrote in message
>news:i4t9j058cufesr9blcbpln22aii5m5j27k@4ax.com.. .
>
>> Maybe dolphin's eyes are adapted to see in the water and their vision
>> out of the water is blurred. Maybe the net doesn't show up well on
>> their sonar. Whatever - you can't make the assumption that they don't
>> jump out because they are retarded.
>
>Not necessarily. You have to look at the nets. There is no way they could
>keep in a determined dolphin. Blurry vision doesn't matter because they
>barely have to leave the water to shimmy over the nets. If they can see
>underwater, they can see that there's simply more water on the other side.
>They are either retarded or they simply don't want to leave.
>
After I wrote that I thought that perhaps they could not tell that the
net stopped close to the surface and so did not know that they could
jump over it.

I don't think that they do very much of their hunting by sight either.

grandma Rosalie

Lee Bell wrote:
> "Jer" wrote
[....]

>>Gee, Pavlov's dog did the same thing.
>
>
> Funny, I don't recall that Pavlov released his dogs. Can you provide a
> cite?
>

No, I don't have any cites, Lee, other than I seem to recall Pavlov
removed the leash at times (according to a college memory cell). Then
again, Pavlov's dog wasn't stolen from the wild either, so I'm neither
surprised nor impressed the poor mutt returned to the hand that rang the
dinner bell. Which, BTW, would imply the leash was unnecessary in the
first place unless one considers Pavlov was a control freak.


--
jer email reply - I am not a 'ten' ICQ = 35253273
"All that we do is touched with ocean, yet we remain on the shore of
what we know." -- Richard Wilbur