53 posts tagged with biology and evolution (View popular tags)

How We Evolve: "A growing number of scientists argue that human culture itself has become the foremost agent of biological change, making us — for the past 10,000 years or so — the inadvertent architects of our own future selves."
posted on Oct 9, 2008 - View this thread

Getting to the bottom of evolution: Genetic study investigates the origin of the anus.
posted on Sep 18, 2008 - View this thread

Rethinking Evolution with Stuart Newman, The New Master Of Evolution? Video Interview: Evolution Politics. A reformulation of the theory of evolution. Susan Mazur presents most of the players in her latest e-book: Will the Real Theory of Evolution Please Stand Up?
posted on Sep 1, 2008 - View this thread

Why are there still monkeys?
posted on Aug 25, 2008 - View this thread

EO Wilson believes in Darwinism group selection: "evolution as a multi-level process1 that can evolve adaptations above the level of individual organisms."
posted on Jul 23, 2008 - View this thread

Festooning The Tree Of Life. Carl Zimmer describes new research on lateral gene transfer which makes the Tree of Life look more like a Gordian Knot.
posted on Jul 20, 2008 - View this thread

A University of Chicago doctoral candidate has shown that the evolution of the flatfish was much more gradual than previously thought.
posted on Jul 10, 2008 - View this thread

How Smart Is the Octopus? [Via Pharyngula]
posted on Jun 24, 2008 - View this thread

The Cosmic Womb: Recently published findings from researchers with the Imperial College London’s Department of Earth Science and Engineering seem to bolster the case for extra-terrestrial sources for the origins of life on Earth. (A PDF of the published results can be downloaded here, if you want the technical specifics.)
posted on Jun 13, 2008 - View this thread

What Is A Species? "To this day, scientists struggle with that question. A better definition can influence which animals make the endangered list."
posted on Jun 8, 2008 - View this thread

Rutgers professor of philosophy Jerry Fodor created a bit of a stir last October when he wrote an article for the London Review of Books arguing that natural selection may not be such a great theory after all, and that a "major revision of evolutionary theory... is in the offing." Not many fellow philosophers and academics agree, it seems. Fodor responds to his critics here and here. Six months later, it's still not entirely clear whether his argument is, as Justin E.H. Smith put it, "irresponsible and stupid or so subtle that none of his adversaries, defending a status quo interpretation of the theory of natural selection, have been able to get it yet."
posted on May 6, 2008 - View this thread

A new round of genetic tests has confirmed it: The 'big lizards' of our childhood fantasies were more likely 'big birds.' In fact, they probably even had feathers, and looked more like this than this. Mind blowing, I know, but I guess this demonstrates that, despite what some may think, science really doesn't have a problem admitting that it got something wrong when new evidence comes to light.
posted on Apr 24, 2008 - View this thread

Suspending Life. "If almost every species on Earth was killed some 250 million years ago, how did our ancient ancestors survive and evolve into us?"
posted on Apr 18, 2008 - View this thread

A fish with forward facing eyes has been discovered in Indonesia.
posted on Apr 3, 2008 - View this thread

Public concern over ecological damage inflicted by human activity has led to growing recognition of the general importance of issues relating to biological science. Unfortunately, the dispute between creationists and upholders of the theory of evolution tends to overshadow public discussion of other more pertinent matters. Specifically, there are significant but relatively unpublicized initiatives underway to promote holistic approaches to biology. The Nature Institute in New York is one such initiative...
posted on Mar 31, 2008 - View this thread

Any admixture would have to be driven by male Neanderthals. Two years ago we discussed morphological evidence of nontrivial interbreeding. Since then Neanderthal DNA has been examined for genetic support for this model of human evolution, largely contradicting the belief in Neanderthal contribution to modern humanity. Indeed any contribution from the Neanderthal gene pool to the evolution of modern humans might be very rare and indeed it appears that the best candidate gene thus (MC1R) far likely was a result of convergent evolution.
posted on Mar 20, 2008 - View this thread

Tetrapod Zoology just celebrated Ankylosaur Week. Days 7, 6, 5, 4, 3, and 1.
posted on Feb 25, 2008 - View this thread

Answers Research Journal is a new "professional peer-reviewed technical journal for the publication of interdisciplinary scientific and other relevant research from the perspective of the recent Creation and the global Flood within a biblical framework." Current Volume. Call for Papers.
posted on Feb 2, 2008 - View this thread

'Race' graphically illustrated - "most Europeans" vs. Ashkenazim (previously; see also IQ & Gladwell, viz. ;)
posted on Jan 23, 2008 - View this thread

Darwin's Surprise. "There may be no biological process more complicated than the relationships that viruses have with their hosts. Could it be that their persistence made it possible for humans to thrive?" [Via Disinformation.]
posted on Nov 27, 2007 - View this thread

The Inner Life of an Intelligently Designed Cell? Remember The Inner Life of a Cell animation (discussed here)? Apparently the Discovery Institute (recently discussed here) is showing it in presentations with a new title and narration, and without attribution.
posted on Nov 20, 2007 - View this thread

From Ants to People, an Instinct to Swarm. Carl Zimmer looks at the work of Iain Couzin. [Via The Loom.]
posted on Nov 13, 2007 - View this thread

A Profound Sense of Time. "PZ Myers on the process that prompts the growth of all vertebrates from embryos to unspecialized segments to multicellular animals."
posted on Oct 20, 2007 - View this thread

"We Few, We Happy Few, We Band of Brothers." Evolutionary psychologist Andy Thomson analyzes suicide terrorism from the perspective of evolutionary biology. The presentation was part of the Atheist Alliance International convention in D.C. last month.
posted on Oct 13, 2007 - View this thread

Prime Vertebrae. PZ Myers discusses the critical difference between having six or seven cervical vertebrae.
posted on Aug 13, 2007 - View this thread

In Games, an Insight Into the Rules of Evolution. Carl Zimmer writes about Martin Nowak (previously mentioned here), a mathematical biologist who uses games to understand how cooperation evolved. [Via MindHacks.]
posted on Aug 11, 2007 - View this thread

Can't ever find what you are looking for at the bookstore? Tired of seeing pseudoscience or pop psychology books in the science section? Join a grassroots effort to re-shelve books to the appropriate section of the store: Biologists Helping Bookstores.
posted on Jul 28, 2007 - View this thread

"Nothing in biology makes sense except in light of evolution." Despite Theodosius Dobzhansky's succint description of natural selection at the core of biological research since Darwin's fateful trip to the Galapagos, evolutionary biologist Michael Lynch respectfully dissents, asking "whether natural selection is a necessary or sufficient force to explain" the complexity of multicellular organisms we see today, where mutation, recombination and genetic drift are often overlooked, but critical factors in evolutionary theory and understanding.
posted on May 29, 2007 - View this thread

How Do You Get Crabs From A Gorilla? One of many little evolutionary cases Carl Zimmer tackles in The Parasite Files.
posted on Apr 18, 2007 - View this thread

Sea Squirt Regrows Entire Body from One Blood Vessel. Most famous as the creature that settles down and eats its own brain (though that is not exactly correct), it appears the humble sea squirt has spectacular regenerative abilities as well, thanks to regeneration niches packed with stem cells. All glory to the sea squirt!
posted on Mar 6, 2007 - View this thread

Birds that rap and cows with accents. The big picture is urban adaptation, which is pretty cool. (...and the egg wins.)
posted on Dec 28, 2006 - View this thread

Neanderthal Lovin’! New research from evolutionary scientist Bruce Lahn suggests that humans and the now extinct Neanderthal species mixed, and humans snatched up a valuable brain gene in the process. (The gene, MCPH1, and Lahn, discussed last year on MeFi) This comes on the tails of yet another new study providing morphological evidence that there was nontrivial interbreeding between humans and Neanderthals in Eurasia, despite the fact that Neanderthals may have been genetically closer to chimps than humans. Contrary to popular imagination, though, the Neanderthal species had bigger brains and sophisticated intellects, at least roughly on par with that of human beings. The gene regulates brain size during development, but its exact utility to humans is still unknown (and controversial). The origin of this gene and the question of Neanderthal mixing will soon be answered more definitively by the, just launched, 2 year project to map the Neanderthal genome, headed by Svante Pääbo (profiled in recent Smithsonian and Wired articles). Pääbo calls Lahn’s study "the most compelling case to date for a genetic contribution of Neandertals to modern humans."
posted on Nov 8, 2006 - View this thread

Whales are ridiculous, thanks to their evolutionary origins as coyote-like mammals moved into the water about 45 million years ago and became more and more adapted to the marine life.
posted on Aug 16, 2006 - View this thread

Against Pandas: "Pandas are endangered because they are utterly incompetent... Pandas are badly designed, undersexed, overpaid and overprotected. They went up an evolutionary cul-de-sac and it is too late to reverse."
posted on Jul 2, 2006 - View this thread

The first Transhuman Conference On the Law of Transhuman Persons: Whether or not you believe humans are set to evolve into gods, or AI is destined to achieve self-awareness the idea of the Transhuman is a thought provoking concept. Philosophers have debated the nature of the self, of the human for millennia. Is it time to start drafting new laws to govern all possible sentient beings on this planet? or is it all just a science of fiction? a comfortable humanist illusion?
posted on Dec 13, 2005 - View this thread

Deep Time. “Once we realize that Deep Time can never support narratives of evolution, we are forced to accept that virtually everything we thought we knew about evolution is wrong.”
It’s not the latest salvo from the proponents of intelligent design... [more inside]
posted on Nov 25, 2005 - View this thread

Evolutionary biologist Paul Ewald, author of The evolution of infectious disease and an expert on the development of pathogen virulence (see this, this and this for a good intro), responds to this editorial in Scientific American and pours cold water on fears of pandemic influenza.
posted on Nov 4, 2005 - View this thread

The Aquatic Ape Theory (often referred to as the AAT or AAH) says humans went through an aquatic or semi-aquatic stage in our evolution and that this accounts for many features seen in human anatomy and physiology. Using the principle of convergent evolution, it says that life in an aquatic environment explains these features, and that a transition from ape to hominid in a non-aquatic environment cannot. See also: BBC (excellent), Wikipedia, Google.
posted on Sep 20, 2005 - View this thread

Genes Reveal Recent Human Brain Evolution. Two important new papers in the journal Science (available here) from the evolutionary geneticist and rising star, Bruce T. Lahn (see this recent profile from The Scientist), are potentially the tips of some very large icebergs. The papers document how two genes related to brain properties that underwent strong selection during the course of hominid evolution, have continued undergoing strong selection since the emergence of anatomically modern man. The papers wonderfully illustrate how biological evolution is an ongoing process as well as the artificial distinction between “micro” and “macro” evolution, and promise to be controversial for two reasons: First, the brain genes underwent the strongest selection during two periods of cultural and technological efflorescence (roughly 37,000 and 5,800 years ago). Second, the genes are distributed very differently in modern human population groups, existing at very high frequencies in some groups and being very rare in others, ensuring that the modern function of these genes will be a source of more research and much impassioned debate. More observations from anthropologist John Hawks.
posted on Sep 8, 2005 - View this thread

A more efficient microbe genome. A more efficient sorting algorithm. A more efficient keyboard layout.
posted on Aug 26, 2005 - View this thread

The fitness of evolutionary psychology
posted on Jul 4, 2005 - View this thread

Female X chromosome 'cracked' - "The discovery, by an international consortium of scientists, shows that females are far more variable than previously thought and, when it comes to genes, more complex than men." Nature reports two new studies; one on the complete sequencing of the X chromosome for humans, which sheds some light on how sex evolved and how women differ from men, and another on how women express many genes from X chromosomes previously thought dormant.
posted on Mar 16, 2005 - View this thread

The Dawkins FAQ. Interesting Q&A session about evolution, biology, genes, etc with an expert. Dawkins claims no final answer on the "gay gene" or a Darwinian explanation of homosexuality.
posted on Nov 27, 2004 - View this thread

The Tree of Life.
posted on Apr 26, 2004 - View this thread

Just found this one. The San Francisco Chronicle reports on a Berkeley website for supporting science teachers teaching evolution. The project was built with a grant from the National Science Foundation and has received an additional grant to expand the site to develop content for students and adults. More coverage from The Daily Bruin at UCLA and a brief clip from Science News.
posted on Apr 15, 2004 - View this thread

Cosmic Evolution -- Particulate, Galactic, Stellar, Planetary, Chemical, Biological, Cultural (Via the Exploratorium)
posted on May 13, 2003 - View this thread

Don't believe in evolution? Don't get a recommendation. The Justice Department has been asked to look into the case of a Texas Tech biology professor who has made it clear that you won't get a recommendation from him if you believe in creationism. In his online notes to students, Dini writes "If you set up an appointment to discuss the writing of a letter of recommendation, I will ask you: 'How do you think the human species originated?' If you cannot truthfully and forthrightly affirm a scientific answer to this question, then you should not seek my recommendation for admittance to further education in the biomedical sciences." The Liberty Legal Institute, calls the policy "open religious bigotry." Texas Tech supports Lini, saying the decision on whether to recommend someone is a personal one. Clearly, it should be a professor's call on whether to give a student a recommendation or not, but did Lini make himself a target by laying out this criteria this way?
posted on Jan 30, 2003 - View this thread

The Twisted Path of Stick Insect Evolution Challenges the Theory of Evolution
Sort of... In an article on the cover of today's Nature, research on the evolution of stick insects is announced. But depending on the news source, this is either a strong challenge to the theory of evolution, or a mild revision. So who's right?
posted on Jan 16, 2003 - View this thread

This news item turned out to be a hoax. Has Reuters been fooled again? I certainly smell a rat... (I know the original mefi link pointed to the BBC, but the BBC picked it up from Reuters)
posted on Oct 19, 2002 - View this thread

Of all species that have existed on Earth, 99.9 percent are now extinct, yet scientists insist that we make a great effort to save endangered species. If extinction is the natural course of evolution, why bother? And if humankind is the cause of these lastest extinctions and endangerments, should efforts be made to save people so that their exploitation of the natural world can continue? Aren't our efforts to fight diseases such as the aids epidemic in Africa not only a denial of evolutionly forces but also adding to the problem of overpopulation exerting unbearable pressure on the environment? If evolution is truely the force it's claimed to be can it's course be changed by mankind and if so, should it be? Should evolution be allowed to take its course?
posted on Jul 8, 2002 - View this thread

the serpent foundation promotes a radical new theory merging biological evolution with cultural evolution and founded on human female sexual selection. This is the shift theory. "Since ancient times, the serpent has been closely associated with the mythological power of the female. In shift theory biological and cultural evolution are redefined in light of unifying concepts that make for a compelling argument that culture was initially derived from female sexual selection."
posted on Oct 7, 2000 - View this thread

The discovery of mirror neurons in the frontal lobes of monkeys, and their potential relevance to human brain evolution — which I speculate on in this essay — is the single most important "unreported" (or at least, unpublicized) story of the decade. I predict that mirror neurons will do for psychology what DNA did for biology: they will provide a unifying framework and help explain a host of mental abilities that have hitherto remained mysterious and inaccessible to experiments.

--V.S. Ramachandran

(after you read the essay, you might be interested in the responses.)
posted on Jun 8, 2000 - View this thread

Human Evolution Will the next significant steps be biological, technical or both?
posted on Jun 6, 2000 - View this thread