Evolution, Dogs
(Top Posts - Science - 100708)

Someone wrote:

> The Big Bang Theory of creation is patently ridiculous.

Esteemed.

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Someone wrote:

> Darwin's theories of evolution are equally insane.

Endorsed by the founder of the christian faith, the
Roman Catholic church, esteemed by the overwhelm-
ing majority of scientists who haven't been mind-
trapped from a young age by religious blind faith.

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Someone wrote:

> A dog reproduces when it is a year old and we have had
> domesticated dogs for, say, 5000 years and that is 5000
> generations and is the dog any different or any better than
> the 5,000 generation ago model.

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  http://en.wikipedia.org/wiki/Dog
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Excerpts:

The dog (Canis lupus familiaris) is a domesticated
subspecies of the gray wolf ... The domestic dog has
been one of the most widely kept working and com-
panion animals in human history, as well as being
a food source in some cultures. There are estimated
to be 400 million dogs in the world.

...

Based on DNA evidence, the wolf ancestors of modern
dogs diverged from other wolves about 100,000 years
ago, and dogs were domesticated from those wolf an-
cestors about 15,000 years ago. This date would make
dogs the first species to be domesticated by humans.

Evidence suggests that dogs were first domesticated in
East Asia, possibly China, and some of the peoples
who entered North America took dogs with them from
Asia.

...

Modern dog breeds show more variation in size, appear-
ance, and behavior than any other domestic animal.

Within the range of extremes, dogs generally share attri-
butes with their wild ancestors, the wolves. Dogs are
predators and scavengers, possessing sharp teeth and
strong jaws for attacking, holding, and tearing their
food.

Although selective breeding has changed the appearance
of many breeds, all dogs retain basic traits from their
distant ancestors. Like many other predatory mammals,
the dog has powerful muscles, fused wristbones, a cardi-
ovascular system that supports both sprinting and endur-
ance, and teeth for catching and tearing.

Unlike humans which are plantigrade [walking with the
podials and metatarsals flat on the ground], dogs are
digitigrade [an animal that stands or walks on its digits,
or toes].

...

Compared to equally sized wolves, dogs tend to have 20%
smaller skulls and 10% smaller brains, as well as propor-
tionately smaller teeth than other canid species.

...

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Someone wrote:

> Heck no.  Same dog.  Same with any other animal includ-
> ing the tortoise or crocodile which is unchanged in 100,000
> years.

Per young earth creationists, all has occurred within a short
time span measuring in thousands of years. Obviously, you
are not a young earth creationist as you accept at least a
100,000 year history.

Evolution selects for survival. Crocodiles and alligators
have been around for 200 million years, obviously a very
successful evolutionary outcome. Note that in many spe-
cies, eating the young is employed, a trait that would seem
to be a recipe for extinction, but instead, has resulted in
long-term species survival. Then again, in humans, a very
large number of what some humans call 'life' (fertilized
eggs) fail to make it to birth, without any intervention by
humans whatsoever, so it would appear that surviving and
reproducing entails a high percentage of death to fertilized
eggs in many species.

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Someone wrote:

> So much for Darwin.

You would have to admit, in a moment of logic and rea-
son, that Darwin's theory of evolution is one of human-
kind's greatest accomplishments.

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Someone wrote:

> Even if you want to give Darwin some credence it would
> take a trillion years for the fish to grow limbs and crawl
> out of the water and "evolve" into thousands and thousands
> of very different species.

Actually, the fossil and genetic evidence shows that those
events took place in far less than a trillion years.

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