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Evolution Defenders

A group for Secularists, Agnostics, Atheists, etc... who believe we should keep the poison of creationism and Intelligent Design OUT of public school science classrooms.

Location: #science
Members: 62
Latest Activity: on Thursday

ID conspiracy proof... written by the proponents of ID themselves!!!

The Formerly-Secret "Wedge Document" written by the Intelligent Designers themselves. Proof that ID is creationism in disguise.
The Wedge Document.pdf
Also find this document at http://ncseweb.org/

This document was key evidence in the Dover, PA trial featured in "Judgement Day: Intelligent Design on Trial."

Discussion Forum

Why Being Human Makes Evolution Hard to Understand

Started by Neal. Last reply by Tom Sarbeck Oct 19, 2016. 5 Replies

Being human makes for foolishness.Cameron M. SmithVolume 37.6, November/December 2013Our difficulty accepting evolution isn’t just because some religions oppose it or that it is complicated—it isn’t.…Continue

Tags: to, understand, atheist, universe, hard

Homo erectus may have doodled on shellfish

Started by Davy. Last reply by doone Dec 6, 2014. 1 Reply

Early humans from Java used shells for tools and engraving long before Homo sapiens did, new research suggests.The findings, published today in the journal …Continue

Tags: University, National, Museum, of, Australia.

Evolution Notes and News

Started by doone. Last reply by archaeopteryx Jan 8, 2014. 74 Replies

Date of earliest animal life reset by 30 million years…Continue

Tags: News, and, Notes, Evolution

Promoting Evolution Through Cartoons.....

Started by Neo Jul 8, 2013. 0 Replies

I have been watching Cartoon Network lately. Mainly because adult TV has gotten really boring, but I also still love cartoons. One day I was watching this one show called "The World of Gumball" and…Continue

Comment Wall

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Comment by Stephen on February 17, 2017 at 12:18pm

Sixth and eighth cervical vertebrae of specimen NMB So.596 in dorsal, ventral, anterior, posterior, left, and right views. Abbreviations: cen, centrum; nea, neural arch; poz, postzygapophysis; prz, prezygapophysis; trp, transverse process.

Sixth and eighth cervical vertebrae of specimen NMB So.596 in dorsal, ventral, anterior, posterior, left, and right views. Abbreviations: cen, centrum; nea, neural arch; poz, postzygapophysis; prz, prezygapophysis; trp, transverse process.

A Jurassic stem pleurodire sheds light on the functional origin of neck retraction in turtles

Comment by Stephen on January 29, 2017 at 9:48am

Penis bones from various mammals. The baculum varies so much in terms of length and whether it is present at all, that it is described as the most diverse bone ever to exist. Photograph: KPA/Zuma/REX/Shutterstock

Penis bones from various mammals. The baculum varies so much in terms of length and whether it is present at all, that it is described as the most diverse bone ever to exist. Photograph: KPA/Zuma/REX/Shutterstock

Why don't humans have a penis bone? Scientists may now know

It can be as long as a finger in a monkey. In the walrus, it can be two feet long. But the human male has lost it completely. And researchers are a little stumped.

Known as the baculum to scientists with an interest, the penis bone is a marvel of evolution. It pops up in mammals and primates around the world, but varies so much in terms of length and whether it is present at all, that it is described as the most diverse bone ever to exist.

Read more= read:https://www.theguardian.com/science/2016/dec/14/why-dont-humans-hav...

Comment by Mrs.B on January 27, 2017 at 1:33am

I can't see Pence & scump getting along in the long run, but who knows?

Comment by Stephen on January 26, 2017 at 5:28pm

I’ve got news for Mike Pence and his view on evolution, writes Steve Jones

In physical terms Homo sapiens is enfeebled indeed, but for the grey matter, things are different

Mike Pence: insists life is the product of a designer, perhaps 6,000 years ago REUTERS

The time for experts, we are told, is over. Undaunted, my Ladybird Expert book on Evolution came out on Tuesday, accompanied by others on climate change and quantum mechanics, with more to come.  

Nobody can speak a language without understanding how it fits together. Evolution is the grammar of biology. It unites the study of plants, animals and people into a single science. Without it, the subject would be a list of disconnected facts, as it was until 1859, when Charles Darwin published The Origin of Species. Most people in the world do not believe him, or in evolution. The new American Vice-President, Mike Pence, is among them and insists that life is the product of a designer, perhaps 6,000 years ago. 

Creationists, unfortunately, do not know what Darwin’s ideas actually were. They involve “descent with modification”: the accumulation of errors over the generations. 

This raw material is refined in the furnace of natural selection — inherited differences in the chance of reproducing — to give new forms of life. Darwin called his book “one long argument”. It moves from the obvious to the outrageous: from cattle-breeding to the claim that “light will be cast on man and his origins”. 

My own shorter version goes from foxes to human frailty. In 1959 a Russian biologist set out to breed silver foxes, their fur used for winter hats. 

At first, the animals were terrified by humans and almost impossible to deal with. He began to breed only from the five per cent that allowed him to approach their cages without going into a frenzy.  

Within a few generations the animals became calm and began to bark and wag their tails. They were not black with a few silver hairs but much paler. They now sell for thousands as pets, but they are diminished versions of their wild relatives. We are just the same: domesticated apes, and reduced renditions of our ancestors. 

Comment by Stephen on January 26, 2017 at 5:15pm

South Dakota Anti-Evolution Legislation Breezes Through State Senate

A South Dakota bill that would weaken the teaching of evolution and climate change is barreling through the state legislature.

Yesterday, SB 55 passed in the Senate on a 23-12 vote. Considering there are only 6 Democrats in the State Senate, all of whom voted against the bill, that means even some Republicans understood the law would be a bad idea.

The bill would allow teachers to discuss the “strengths and weaknesses of scientific information” — which is really just code for teaching things like climate change denial and Intelligent Design.

A similar bill, also proposed by State Senator Jeff Monroe, was scrapped in 2014 because he explicitly pushed for the teaching of Intelligent Design. The current bill uses the euphemism instead.

SB 55 now heads to the House, where Republicans have a 59-10 edge.

(via National Center for Science Education. Image via Shutterstock. Large portions of this article were published earlier)

Comment by Mrs.B on January 20, 2017 at 11:20pm

I have a lot of hair so I could be part ape for all I know.,,,,hahahaha.

Comment by Stephen on January 20, 2017 at 11:18pm

I suspect if I was tested they would find a higher percentage of Neanderthal in my genome. haha

Comment by Mrs.B on January 20, 2017 at 11:15pm

I wish I had the money to get myself tested.

Comment by Stephen on January 20, 2017 at 11:09pm

John Anthony Capra at the Vanderbilt University biobank freezer in Nashville. The freezer can store some 400,000 DNA samples.Credit Joe Buglewicz for The New York Times

John Anthony Capra at the Vanderbilt University biobank freezer in Nashville. The freezer can store some 400,000 DNA samples.Credit Joe Buglewicz for The New York Times

What Did Neanderthals Leave to Modern Humans? Some Surprises

Geneticists tell us that somewhere between 1 and 5 percent of the genome of modern Europeans and Asians consists of DNA inherited from Neanderthals, our prehistoric cousins.

At Vanderbilt University, John Anthony Capra, an evolutionary genomics professor, has been combining high-powered computation and a medical records databank to learn what a Neanderthal heritage — even a fractional one — might mean for people today.

We spoke for two hours when Dr. Capra, 35, recently passed through New York City. An edited and condensed version of the conversation follows.

Q. Let’s begin with an indiscreet question. How did contemporary people come to have Neanderthal DNA on their genomes?

A. We hypothesize that roughly 50,000 years ago, when the ancestors of modern humans migrated out of Africa and into Eurasia, they encountered Neanderthals. Matings must have occurred then. And later.

One reason we deduce this is because the descendants of those who remained in Africa — present day Africans — don’t have Neanderthal DNA.

Read more= read:https://www.nytimes.com/2017/01/20/science/john-anthony-capra-neand...

Comment by Stephen on January 6, 2017 at 1:04am

Dawkins’s answer to the Edge question: the genome as palimpsest

As I posted yesterday, a lot of contributors gave their answers to the 2017 annual Edge Question, “What scientific term or concept ought to be more widely known?” (See all responses here.) In the last 24 hours Richard Dawkins has weighed in with his answer, “The genetic book of the dead,” which involves reverse-engineering our DNA sequences to reconstruct the ancestral environments of living species. While Dawkins has discussed this before, most notably in Unweaving the Rainbow, not everyone’s read that book. It’s worth considering that an organism’s genome may be a palimpsest of its ancestry, which in turn reflects in part the environments to which those ancestors were adapted.

You can read Richard’s piece for yourself; I’ll give one brief excerpt:

Given a key, you can reconstruct the lock that it fits. Given an animal, you should be able to reconstruct the environments in which its ancestors survived. A knowledgeable zoologist, handed a previously unknown animal, can reconstruct some of the locks that its keys are equipped to open. Many of these are obvious. Webbed feet indicate an aquatic way of life. Camouflaged animals literally carry on their backs a picture of the environments in which their ancestors evaded predation.

But most of the keys that an animal brandishes are not obvious on the surface. Many are buried in cellular chemistry. All of them are, in a sense which is harder to decipher, also buried in the genome. If only we could read the genome in the appropriate way, it would be a kind of negative imprint of ancient worlds, a description of the ancestral environments of the species: the Genetic Book of the Dead.

Naturally the book’s contents will be weighted in favour of recent ancestral environments. The book of a camel’s genome describes recent milennia in deserts. But in there too must be descriptions of Devonian seas from before the mammals’ remote ancestors crawled out on the land. The genetic book of a giant tortoise most vividly portrays the Galapagos island habitat of its recent ancestors; before that the South American mainland where its smaller ancestors thrived. But we know that all modern land tortoises descend earlier from marine turtles, so our Galapagos tortoise’s genetic book will describe somewhat older marine scenes. But those marine ancestral turtles were themselves descended from much older, Triassic, land tortoises.  And, like all tetrapods, those Triassic tortoises themselves were descended from fish. So the genetic book of our Galapagos giant is a bewildering palimpsest of water, overlain by land, overlain by water, overlain by land.

Read more= read:https://whyevolutionistrue.wordpress.com/2017/01/02/dawkinss-answer...

 
 
 

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