Wednesday, September 9, 2009

The Vestigial Grasp in Infants

Vestigial traits are characters of organisms which have seemingly lost all or most of their original function in a species through evolution. Some examples are wings on flightless birds, hind leg bones in whales, wisdom teeth in humans, the appendix in humans, hind leg bone "spurs" in some python species...The list goes on and on. The following is taken from biologist and author of "Why Evolution is True", Jerry Coyne:

But behaviors can be vestigial, too. One such behavior is the “grasping reflex” of human infants. When you put your finger into the palm of an infant, it will immediately and securely grasp it. The grasp is so tight that it’s sometimes hard to make the kid let go! It is said — though I have never seen this demonstrated — that up to a couple months of age a baby can hang suspended from a horizontal stick for several minutes.

The grasping reflex is evident in the feet, too. If you put your finger along a baby’s toes from the sole side, it will grasp with those toes. And when a baby is sitting down, its “prehensile” feet assume a curled-in posture, much like what we see in an infant or an adult chimp.





Why do infants show this grasping reflex, but then lose it after several months? A very plausible suggestion is that the behavior is a remnant of the grasping reflex seen in other infant primates, which they use to hold on to the hair of their mothers as they’re being carried about.




Tuesday, September 8, 2009

Bible in the Classroom: Noah's Ark And The Dinosaurs

Neil deGrasse Tyson at The Amazing Meeting 6.



Dr. Tyson is an astrophysicist ,author, director of The Hayden Planetarium, and host of NOVA scienceNOW on PBS.

Friday, September 4, 2009

The Greatest Show on Earth: The Evidence for Evolution by Richard Dawkins

The Highly-anticipated new book from the bestselling author of The God Delusion!
US release: Tuesday, September 22nd





Charles Darwin's masterpiece, "On the Origin of Species", shook society to its core on publication in 1859. Darwin was only too aware of the storm his theory of evolution would provoke but he would surely have raised an incredulous eyebrow at the controversy still raging a century and a half later. Evolution is accepted as scientific fact by all reputable scientists and indeed theologians, yet millions of people continue to question its veracity. In "The Greatest Show on Earth", Richard Dawkins takes on creationists, including followers of 'Intelligent Design' and all those who question the fact of evolution through natural selection. Like a detective arriving on the scene of a crime, he sifts through fascinating layers of scientific facts and disciplines to build a cast-iron case: from the living examples of natural selection in birds and insects; the 'time clocks' of trees and radioactive dating that calibrate a timescale for evolution; the fossil record and the traces of our earliest ancestors; to confirmation from molecular biology and genetics. All of this, and much more, bears witness to the truth of evolution. "The Greatest Show on Earth" comes at a critical time: systematic opposition to the fact of evolution is now flourishing as never before, especially in America. In Britain and elsewhere in the world, teachers witness insidious attempts to undermine the status of science in their classrooms. Richard Dawkins provides unequivocal evidence that boldly and comprehensively rebuts such nonsense. At the same time he shares with us his palpable love of the natural world and the essential role that science plays in its interpretation. Written with elegance, wit and passion, it is hard-hitting, absorbing and totally convincing.

Thursday, September 3, 2009

The Dark Ages...




"There once was a time when all people believed in God and the church ruled. This time was called the Dark Ages". - Richard Lederer

Ben Stein, Professional Bigoted Douche Keeps the Stupid Flowing


He's an actor, creationist, gay basher, and all around annoying dick and he has a new peice on the right-wing website, The American Spectator.

"We have … an entire party, the Democrats, whose primary constituency, besides the teachers' unions, is homosexual men and lesbian women. I hope it won't come as a surprise to anyone that a big part of male homosexual behavior is interest in young boys."

I think Stein is confusing "homosexual" with "Catholic Priests". To make himself look even more rediculous, here is the very first sentence in the very next paragraph of his article.

"Don't get me wrong. My very best friend is gay."

Well Mr. Stein, your "best friend" keeps shitty company, and I doubt he'd appreciate you calling him a pedophile.

Here's Stein, last year, on the christian tv channel Trinity Broadcast System promoting his anti-evolution, anti-science, pro-creationism "documentary" Expelled: No Intelligence Allowed.

Stein: When we just saw that man, I think it was Mr. Myers [biologist P.Z. Myers], talking about how great scientists were, I was thinking to myself the last time any of my relatives saw scientists telling them what to do they were telling them to go to the showers to get gassed … that was horrifying beyond words, and that’s where science — in my opinion, this is just an opinion — that’s where science leads you.

Crouch: That’s right.

Stein: …Love of God and compassion and empathy leads you to a very glorious place, and science leads you to killing people.

Crouch: Good word, good word.





Religious fRight

Keith Olbermann talks to Dan Savage about how dangerous the GOP's strategy for the last thirty years of pandering to the religious right has been, and how they're now left with the bat-shit crazy like Michelle Bachmann, Glen Beck, and Rush Limbaugh speaking for them.