Showing posts with label biology. Show all posts
Showing posts with label biology. Show all posts

2.20.2012

Rick Santorum Actually Believes The Entire Cosmos Was Created For Homo Sapiens

Rick Santorum, like many humans, has a problem with perspective.

On "Face the Nation," Santorum attempted to clarify his accusations that Obama's theology is "phony":
"I accept the fact that the president is a Christian," Santorum said on CBS' "Face the Nation." "But when you have a world view that elevates the earth above man and says we can't take those resources because its going to harm the Earth, it's just all an attempt to centralize power and give more power to the government."

Santorum said that while Obama believes "man is here to serve the Earth," he believes "Earth is not the objective. Man is the objective."
Silly Rick Santorum.

Here are a few basic scientific considerations:
  • The earth is approximately 4.5 billion years old.
  • Anatomically modern humans evolved in Africa approximately 200,000 years ago.
  • Scientists estimate that at least 99.9 percent of all species of plants and animals that ever lived are now extinct.
  • Based upon evidence of past extinction rates, University of Chicago paleontologists David M. Raup and J. John Sepkoski (among others) have suggested that the average longevity of vertebrate species seems to be 2-4 million years.
  • In 7.6 billion years, the earth will be swallowed up by the expanding sun.
  • According to the Drake Equation, there are "at least 125 billion galaxies in the observable universe. It is estimated that at least ten percent of all sun-like stars have a system of planets, i.e. there are 6.25×1018 stars with planets orbiting them in the observable universe. Even if we assume that only one out of a billion of these stars have planets supporting life, there would be some 6.25×109 (billion) life-supporting planetary systems in the observable universe.
You do the math, Rick.

To think for a minute that man is the objective, you exhibit an embarrassing (and dangerous) level of ignorance about the vastness of time and space.

Someone who is capable of believing that homo sapiens are "the objective" is either deluded by their faith, or incredibly dense (and very likely both).



2.07.2012

Institute For Creation Research's 'That's A Fact!' Video Series Doesn't Contain Any

If, for some strange reason, you enjoy pounding your forehead into your desk, I have great news for you.

Head over to the Institute for Creation Research's Vimeo page and behold their new campaign entitled "That's a Fact!"

I'm not entirely sure what "facts" they're referring to here, as each video is the same old creationist nonsense, just served up Web 2.0-style.

Consider this entry in the series, entitled "Useless Body Parts," which discusses vestigiality.

The Institute for Creation Research states:
Body parts like tonsils and the appendix were once considered unnecessary organs left over from evolution. But scientists have discovered that these “unnecessary” organs are actually very useful.
The video states that scientists now know that the appendix is useful to our immune system, and that the gall bladder is now known to be useful for digesting fats.

With this information, the video draws the following conclusion:
"God doesn't create junk. When he made Adam and Eve, he declared them...very good! Their sin against god started the process of sickness, decay, and death even after God's judgment upon creation, he activated intricately designed backup systems, like the immune system, so that Adam and Eve, and all their descendants could survive after the fall."

I believe that by "facts," they mean "myths."

While their remarks on the appendix and the gall bladder are partly true, they leave out a lot of important information (this seems to happen a lot with creationist propaganda).

For instance, if a supreme being had designed the appendix as part of a human (a human which was designed and created in its current form), then the appendix would be kind of like the Ford Pinto's exploding gas tank. (OK, that's a bad example, you actually need a gas tank to operate a car, but you get the idea) Yes, the appendix may provide some minor functions in modern times, but it might also kill you. Brandon Miller wrote in LiveScience: "In 2000, in fact, there were nearly 300,000 appendectomies performed in the United States, and 371 deaths from appendicitis. Any secondary function that the appendix might perform certainly is not missed in those who had it removed before it might have ruptured."

(Side bar: we have to stop looking at biological traits and features as having "purposes." A chameleon's camouflage mechanism doesn't have a "purpose" (i.e. hiding from prey), it is simply a mechanism that evolved because the chameleons who were less capable of camouflaging themselves died before they could reproduce.)

Regarding the coccyx, I'm not sure the Institute for Creation Research has a true understanding of atavism. Humans occasionally are born with tails.

There are numerous examples of vestigial limbs, organs, and other features: Hind leg bones in whales, male nipples, human wisdom teeth, goose bumps, and wings on flightless birds.

If a designer were hired to create efficient organisms, she would certainly be sent back to the drawing board for many of these useless and extraneous features. She certainly wouldn't be receiving praise for efficiency or conservation of building materials.

The kind of silliness we see in these Institution for Creation Studies videos are straight from the creationist propaganda playbook. The willful ignorance is astounding.

These organizations are so fixated on the mission of proving the Bible's inerrancy, that they are willing to completely ignore all evidence except for the few pieces of evidence that work in their favor. If they can blind their captive audience with just a little science, then they believe they have done enough and can then swoop in with their message of hope and salvation.

"Those silly evolutionists say X is true! But what about Y and Z? Wait! Look over there, it's Jesus and heaven and salvation forever! Amen!"

It's the same approach every single time.

Watch for yourself. Watch them all. Or save yourself the headache.



1.26.2012

The Biological Logistics Of Noah's Ark

If you've ever thought the Noah's Ark narrative in Genesis is a bit far-fetched, you'll really appreciate this very smart, and extremely funny, send-up created by NonStampCollector.

And if you've never thought the Noah's Ark narrative is far-fetched, you will now.







11.22.2011

Why Not? Evolution, Videos & Rockstar Scientists

The below guest post was written by Matt Shipman, a science writer and father of three who lives in Raleigh. You can follow Matt on Twitter at @ShipLives or connect with him here on Google+. 


Evolution shouldn’t be controversial. But, in some circles, it is.

That point was driven home earlier this year via, of all things, the Miss USA competition. This year’s competitors were asked whether they thought evolution should be taught in schools. The majority of them either said no, or that creationism should receive equal time in the science curriculum.

Many girls look up to young women like the Miss USA contestants. So when these role models overwhelmingly speak out against evolution education, that’s a problem.

Normally, I would have shaken my head and moved on. But I made the mistake of posting a flippant remark on Twitter. Something to the effect of: “Someone should do something to respond.” I got called on it.

An acquaintance of mine named Dave Wescott agreed that someone should respond. Then he said that someone should be us. I saw my future free time evaporating.

Within hours we had found a small group of scientists and science communicators who were also interested in being involved. Ultimately, there were me and Dave (P.R. guys), Kevin Zelnio, Jamie Vernon and Andrea Kuszewski (scientist/science communicators). We came up with the idea of creating a video, featuring scientists, which would explain evolution and why it is important to teach evolution in schools. We wanted to avoid divisive behavior and name-calling. Instead, we thought we could convey the fact that evolution is an amazing, uplifting discovery that has served as the genesis of countless advances in many fields of science.

Then someone, I think it was Jamie, suggested that we focus exclusively on female scientists. This was a great idea. In addition to talking about evolution, we could highlight positive role models, showing that women can be scientists and researchers, as well as beauty queens.

We contacted tons of great researchers from around the U.S., Canada and the U.K. Most of them turned us down. They’d never heard of us and, after all, they were all successful scientists (which is why we contacted them). But some of them – amazingly – said they’d participate.

After months of collecting video and editing, here it is. It’s the product of a small group of people, working on their personal time, with a budget of zero dollars. It wouldn’t work at all without the videos submitted by brilliant, generous and well-spoken scientists in fields ranging from genetics to anthropology to marine biology.

It’s not perfect, but we did something good here. We did not just roll our eyes.

It’s a good reminder that creative responses to challenging problems don’t come from other people. They come from you, when you stop making excuses and decide to actually do something positive.

So check the video out. And pass it on.




11.07.2011

Mississippi's 'Personhood' Amendment Is Ludicrous (It May Be Coming to Your State, Too)

Update: The Mississippi personhood amendment was defeated on Tuesday, Nov. 8, but other efforts are underway in other states. This initiative is not going away anytime soon.
A blastocyst (aka 'person') on the tip of a pin

Mississippi is on the verge of passing a constitutional amendment that would define a person as a fertilized egg.

The so-called "personhood" amendment is on the November 8 ballot, and according to the most recent polling, it is very likely to pass.

This should be ridiculously alarming to anyone who is not completely out of touch with reality. Not only would the amendment have cascading legal implications, it would also have serious impact on the health and rights of all women. In addition, the amendment endorses all sorts of religious ideas, whether or not those are defined in the legislation.

Slate served up a slightly humorous, yet incredibly scary, list of legal questions that would arise from the legislation, including the following:
If you are legal person at fertilization, does that mean you could drink at 20 years and three months? Could you drive at 15 and three months? Could you vote at age 17, and collect Social Security at 64?

For legal purposes, would your birthday still be your “birth” day? Or your fertilization day?

Could you arrest women for smoking or drinking while pregnant? Could the state file a child abuse case against a mother who didn’t wear a seatbelt or otherwise endangered her fetus?

If a doctor doesn't take all possible steps to stop a miscarriage, would that be manslaughter?

Could you post ultrasound photos of your fetus (naked) on Facebook? Or would that be child pornography?

Would you be an American citizen if you were conceived in Mississippi but born elsewhere? Could there be “anchor babies” whose parents come to the United States, have sex, and then return home to Mexico for their baby’s birth?

If a woman eats food contaminated by Listeria and miscarries, could the agribusiness be prosecuted for murder?

What about ectopic pregnancies? If the embryo is not removed, it could kill the mother. Should the mother or the doctor be prosecuted for manslaughter if they remove it? Maybe it would be fairer to prosecute the embryo. If the fertilized egg is a person, isn't that person trying to commit murder-suicide?

Granted, some of these examples seem silly. But their ludicrousness underscores a few things: A) Such an extreme and broad amendment has huge implications on the interpretation of the law moving forward, and B) The amendment is ludicrous from the get-go.

Let's look at the human blastocyst. (By definition of the personhood amendment, a blastocyst would now constitute a person.)

Neuroscientist and philosopher Sam Harris wrote about blastocysts in relation to the ethics of stem cell research, but his arguments are just as apt in debating 'personhood':
A three-day-old human embryo is a collection of 150 cells called a blastocyst. There are, for the sake of comparison, more than 100,000 cells in the brain of a fly. [These] human embryos...do not have brains, or even neurons....Perhaps you think that the crucial difference between a fly and a human blastocyst is to be found in the latter's potential to become a fully developed human being. But almost every cell in your body is a potential human being, given our recent advances in genetic engineering. Every time you scratch your nose, you have committed a Holocaust of potential human beings. This is a fact. The argument from a cell's potential gets you absolutely nowhere.

Sure, a fertilized egg has the potential to become a human being. But we must also remember that an acorn is not a tree. It has the potential to become a tree, sure. We must take into consideration the fact that trees evolved to overcompensate -- to produce acorns that outnumber the trees that result from those acorns. This is how nature works.


Twenty percent of all pregnancies result in miscarriage. If all fertilized eggs are 'people,' then 20 percent of all people are killed before they are born. Will there be investigations to determine who was responsible for the untimely death of 1/5 of all 'people' in Mississippi? Will every woman who suffers a miscarriage be interrogated? If it was natural, is God the most prolific serial murderer in Mississippi's history?

Now that I've brought religion into the picture (how can one not?), let's look at this business of souls. Harris writes:
But let us assume, for the moment, that every three-day-old human embryo has a soul worthy of our moral concern. Embryos at this stage occasionally split, becoming separate people (identical twins). Is this a case of one soul splitting into two? Two embryos sometimes fuse into a single individual, called a chimera. You or someone you know may have developed in this way. No doubt theologians are struggling even now to determine what becomes of the extra human soul in such a case.

Isn't it time we admitted that this arithmetic of souls does not make any sense? The naive idea of souls...is intellectually indefensible.
The vote occurring in Mississippi should be very concerning to anyone who cares about privacy, science, liberty, and the enforcement of religious ideology as law. This amendment would ban all abortions, including those that result from incest and rape. It would ban IUDs and 'morning-after pills.' It would render embryonic stem cell research illegal. It would hamper in-vitro fertilization treatment.

God granting personhood to a blastocyst (artist rendering)
And, if successful, it will serve as a template for similar amendments across the country (there are already efforts brewing in Florida, Michigan, Montana, Ohio, Wisconsin and other states), and passage could fundamentally transform the entire framework of laws in each state.

But what should be most troubling about this amendment is it attempts to define legally something which has yet to be defined by science. There is no consensus whatsoever as to when 'life' begins. There is no consensus on the definition of 'life,' in reproductive terms. The legislation attempts to define life in language that is in no way scientific. What it attempts to do is say that a bolt comes down from on high at the moment a sperm fertilizes an egg, and transforms it into a person.

This is supernaturalism, it's not supported by science, and it's about to become law.

10.18.2011

Richard Dawkins: Who Was The First Human?

Whatever your opinion of Richard Dawkins, it's difficult to deny that he has a gift for explaining extremely complex and unimaginable scientific processes in such a way that a child could understand. Some of his thought experiments, such as his wonderful 'hairpin turn' thought experiment in 'The Greatest Show on Earth', are compelling for their ability to provoke an 'aha!' moment in young children, and adults who may not have had the good fortune to be taught evolution, or to be taught it well, in school.

In the below video, from his appearance at The New Yorker Festival, Dawkins walks us through one of the thought experiments in his book for all ages, 'The Magic of Reality.' Through such experiments, children can begin to grasp the immensity of time required for evolutionary change as well as the fact that no particular living thing is ever the first of its kind.