evolution

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Tag archives for evolution

DNA: The Web Inside the Strands

Only 1% of the human genome codes for proteins, which might make you wonder what the rest of the nucleotide sequence is good for. In 2012 the Encyclopedia of DNA Elements (or ENCODE) announced that a full 80% of the genome played a biochemical role, interacting with proteins in some way. But a new study…

How Alien Can a Spacefarer Be?

As our planet makes more and more noise, we can’t help but wonder why no one is paying attention. Are we alone in the universe? Or alone in our desire to discover new worlds? PZ Myers says “Spaceship building is never going to be a selectively advantageous feature — it’s only going to emerge as…

Last Week on ResearchBlogging.org

For the first time, researchers have transformed induced pluripotent stem cells (iPSCs) into specialized bladder cells. Meanwhile the development of iPSCs from normal cells has been shown to depend on two proteins necessary for the induction of a glycolytic state. In order to make iPSCs, researchers have previously needed to collect significant amounts of skin,…

As an alternative to biblical creationism, Intelligent Design infers a less obtrusive God to explain life on Earth. This deity doesn’t hurl bolts of lightning, unless it’s with the express purpose of sparking abiogenesis in the primordial soup. On EvolutionBlog, Jason Rosenhouse dismisses probabilistic arguments against the likelihood of complex organisms, explaining that even the most…

Over the past three days, the Texas State Board of Education has heard over 50 testimonies debating a proposed amendment to reinstate the requirement of teaching the “strengths and weaknesses” of the theory of evolution in the statewide science curriculum. The proposed regulation, which has provided creationism a place in the classroom in the past,…

A new paper published in Genome Research provides the most comprehensive scan to date of the genetic signatures of natural selection resulting from the last 10-40,000 years of human evolution, with some intriguing results. The results show strikingly different patterns of selection in distantly related human populations, suggesting that different human groups have adapted to…

The Buzz: Myths About Darwin

There are several misconceptions circulating about Charles Darwin and his revolutionary ideas and theories in the field of evolution. That’s why, in honor of Darwin’s birthday last month, ScienceBlogger John Wilkins from Evolving Thoughts took it upon himself to clear things up. In his eight-part series, “Myths about Darwin,” Wilkins addresses and debunks claims such…

In this week’s episode of Science Saturday, John Horgan chats with philosopher Denis Dutton about his book, “The Art Instinct,” which argues that our artistic values are due, in significant part, to biological adaptations dating back to the Pleistocene. Next, John and Denis discuss sex and creativity, why there is no art of smell, and…

Scientists have long been torn about the exact evolution of birds since fossil and molecular dating techniques have yielded different answers. But by studying the DNA of birds in the parrot and cockatoo families, which do not migrate like most other birds, researchers were able to discern the times of species divergence and concluded that…