Evolution.....

[lovetohunt]

The Hominidae (/hɒˈmɪnᵻdiː/), also known as great apes [note 1] or hominids, are a taxonomic family of primates that includes seven extant species in four genera: Pongo, the Bornean and Sumatran orangutan; Gorilla, the eastern and western gorilla; Pan, the common chimpanzee and bonobo; and Homo, the human.

It only depends on how far back you want to go.

[rocky]

How did a single cell develop into two sexes?
Why did most of the evolutionary lines stop evolving, and continue to exist in their present state?

[.270]

How did a single cell develop into two sexes?
Why did most of the evolutionary lines stop evolving, and continue to exist in their present state?

Some have begun to regress rather than evolve....ever been to Wal-Mart.....

[JustinJ]

How did a single cell develop into two sexes?
Why did most of the evolutionary lines stop evolving, and continue to exist in their present state?

What makes you think anything has stopped evolving?

Written history isn't NEARLY long enough to observe and record evolution.

[Bill]

The theory of evolution is based on the so-called Miller-Urey Experiments in 1952. That is supposed to be "proof" that the building blocks of live (DNA, cell walls, all the complex 'stuff' that even the simplest bacteria are made of) could be created with electricity and a soup of basic carbon compounds. That, in my opinion, is the 'magic step' that life can come from nothing.



Unfortunately, years later it was found that the assumptions of the earth's atmosphere at that time were different from the experiment, and more importantly the amino acids (building blocks of proteins, not DNA, cell walls, etc. etc.) were collected in the cooled (very cold) trap. If they went back into the soup and cooked longer in the high heat, they would break down and cease to exist. Nice try!

As an undergraduate biochemistry major and bachelor's degree holder, I believe it disproves the fundamental assumption that life can come from nothing. But then again, I don't believe human activity has changed the temperature on the earth, and belive if not an illegal alien with a false social security number, the President is at minimum ineligible to be president- so you have me calibrated.

[Bill]

Adaption is a process in evolution.

I disagree. Wolves turned into domesticated dogs and a great dane and a poodle are 'adaptions' of the same animal, but they're both still dogs. A bird population with genetics to have either long or short beaks left in certain feeding conditions will eventually all have long or short beaks. Adaption. Based on what was already in their DNA. But they're still birds. Most, if not all, mutations we are aware of are harmful and reduce the animal's ability to live, not cause it to prosper. Cancer is a mutation of the DNA. Not good.

[rocky]

What makes you think anything has stopped evolving?

Written history isn't NEARLY long enough to observe and record evolution.

Why do we still have single (unicellular) cell organisms?

[AgHntr10]

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[GrapeApe]

What makes you think anything has stopped evolving?

Written history isn't NEARLY long enough to observe and record evolution.

This is EXTREMELY true! Evolution has no end-game. We aren't the top of the ladder. Think about this...we've evolved into our current state for approx. 6000 years as the hominids we are familiar with. Take some genetic material, wrap it in protein, name it Ebola or HIV and boom, we die. What kind of process ends up with such a delicate final form?

[Jtrage]

Adaption is a process in evolution.

This. Meaning that adaptation leads to evolution in favorable cases.

I find it hard to have a conversation with one side saying there is no tangible proof that something is right while the same argument is made for the other.

[JustinJ]

I disagree. Wolfs turned into domesticated dogs and a great dane and a poodle are 'adaptions' of the same animal, but they're both still dogs. A bird population with genetics to have either long or short beaks left in certain feeding conditions will eventually all have long or short beaks. Adaption. But they're still birds.

adaptions over a LONG period of time can result in a new species. Wolves were domesticated a short time ago on the timeline of the earth. And the domestication of wolves in the subsequent selective breeding isn't evolution. Plus there hasn't been even close to enough time since dogs started to be selectively bred for a new species to occur. But that wasn't the point of my post.


And the bird eventually turned into a different species after those adaptions. Look up Darwin's finches.

[cbd10pt]

The giraffe

The giraffe is a great example of an animal that could not have evolved . The giraffe has a special valve above its heart that keeps blood from flowing into its head while he dips his head to drink water. If it were not for this valve the blood pressure in his head would rise above A level the soft tissues in his head can tolerate. In other words blood with rupture from his eyes and ears.
No other animal has this valve so if this species were to have evolved the first generation of long neck mammals would have caused themselves to go extinct the first time they got a drink thus there would be no giraffes today

[Traildust]

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(drops mic, walks off stage )

[buckmastertexas]

Grizzly bears and polar bears have the same DNA. They are descended from the same source. Over time the Brown color gene was weeded down in predominantly white icy areas, and vice versa for grizzly bears in the more verdant green and Brown environment. Would that be considered evolution or adaptation.

adaptation

[Johnny Dangerr]

This.
http://www.businessinsider.com/anima...istory-2015-11

This is excellent...

I believe in both. This planet is evolving and the species in it will change or die. Rattle bugs have gotten quieter every year for 20ish years. Why? Dinner bell to a pig.
God has a plan, and it plainly includes change.........