Skip

572 posts tagged with biology.
Displaying 201 through 250 of 572. Subscribe:

Three Paths for Four Chambers

It was Alex St. Martin's gory musket injury that paved the way for cow fistulation, a hands-on method to explore the inner workings of bovine digestion.
posted by Chinese Jet Pilot on Mar 18, 2011 - 58 comments

Animals

The Creature Connection: Our love for animals can be traced to our capacity to infer the mental states of others, which archaeological evidence suggests emerged more than 50,000 ago. This article is part of a NYTimes series on the relationship between humans and the animals we raise. [more inside]
posted by homunculus on Mar 18, 2011 - 21 comments

The Definitive Look at the Diversity of Our Planet

Five years ago this week, the BBC started broadcasting one of the most extraordinary documentaries ever to grace television: Planet Earth. The culmination of five years of field work, it employed the most cutting-edge of techniques in order to capture life in all its forms, from sweeping spaceborne vistas to shockingly intimate close-ups -- including many sights rarely glimpsed by human eyes. Visually spectacular, it showcased footage shot in 204 locations in 62 countries, thoroughly documenting every biome from the snowy peaks of the Himalayas to the lifegiving waters of the Okavango Delta, a rich narrative tapestry backed by a stirring orchestral score from the BBC Concert Orchestra. Unfortunately, the series underwent some editorial changes for rebroadcast overseas. But now fans outside the UK can rejoice -- all eleven chapters of this epic story are available on YouTube in their original form: uncut, in glorious 1080p HD, and with the original narration by renowned naturalist Sir David Attenborough. Click inside for the full listing (and kiss the rest of your week goodbye). [more inside]
posted by Rhaomi on Mar 7, 2011 - 69 comments

It made Tyrannosaurus rex. It made Bin Laden too.

Evolution Made Us All
posted by brundlefly on Feb 7, 2011 - 52 comments

The Soul Niche

Swimming around in a mixture of language and matter, humans occupy a particular evolutionary niche mediated by something we call 'consciousness'. To Professor Nicholas Humphrey we're made up of "soul dust": "a kind of theatre... an entertainment which we put on for ourselves inside our own heads." But just as that theatre is directed by the relationship between language and matter, it is also undermined by it. It all depends how you think it.
posted by 0bvious on Feb 4, 2011 - 17 comments

Work It Blot That Bitch Crazy

Bad Project. For anybody who's ever worked in a bio lab, or know people who have. (SLLadyGagaParody.)
posted by kmz on Jan 22, 2011 - 23 comments

get your group on

The Price of Altruism - George Price, a (troubled) father of group selection thru his discovery of the eponymous Price Equation, has a rather interesting biography... [more inside]
posted by kliuless on Jan 15, 2011 - 9 comments

Blackawton bees

A new paper about bees in Biology Letters, Blackawton bees concludes with "We also discovered that science is cool and fun because you get to do stuff that no one has ever done before." The authors are 25 children between 8 and 10 from the Blackawton Public School, becoming the youngest scientist to be published in a Royal Society journal.
posted by rpn on Dec 22, 2010 - 16 comments

CreatureCast

CreatureCast is a collaborative blog and podcast from evolutionary biologist Casey Dunn, who uses it as a teaching tool at the Dunn Lab at Brown University. The Lab investigates ways in which evolution has produced a diversity of life, and the blog includes neat, invertebrate zoology-related videos that may cover anything from "mating when you're stuck to a rock" to Flying with Squid to Multicellularity to Diving for Jellies. (Via) [more inside]
posted by zarq on Dec 16, 2010 - 2 comments

Let's try to avoid creating something with "molecular acid for blood," shall we?

Dmitar Sasselov is an astrophysicist, Director of the Origins of Life Initiative at Harvard and a co-investigator of the Kepler space telescope project to find Earth-like planets around the Cygnus constellation and discover extraterrestrial life. But no matter how successful the Kepler project may be, it still won't answer the most fundamental questions of astrobiology: How diverse is life in the universe? If alien life exists, will it have Earthly DNA and proteins? Or will it run on something else? So Dr. Sasselov has decided to collaborate with two synthetic biologists, asking them to create a life form based on mirror-image versions of what we know as the essential building blocks of living things on Earth. [more inside]
posted by zarq on Dec 14, 2010 - 13 comments

The Beautiful Mind

"It is only fitting that the story of the brain should be a visual one, for the visuals had the ancients fooled for millenniums. The brain was so ugly that they assumed the mind must lie elsewhere. Now those same skeletal silhouettes glow plump and brightly colored, courtesy of a variety of inserted genes encoding fluorescent molecules. A glossy new art book, “Portraits of the Mind,” hopes to draw the general reader into neuroscience with the sheer beauty of its images." Slide Shows: The Beautiful Mind and Portraits of the Mind [more inside]
posted by zarq on Dec 2, 2010 - 6 comments

I, for one...

Ants mimic liquids
posted by fearfulsymmetry on Nov 25, 2010 - 27 comments

Teuthidodrilus samae

Introducing the 'Squid worm' - a new species in a new genus discovered 3,000 metres down off the Indonesian coast.
posted by Artw on Nov 24, 2010 - 41 comments

Creature Feature

The dhole, the maned wolf, and the Tibetan sand fox are just three of the creatures featured at The Featured Creature, a neat (and not overly serious) wildlife blog. There are even some that aren't canids, I think. [more inside]
posted by Wolfdog on Oct 28, 2010 - 31 comments

Bacteria 'R' Us

Bacteria can communicate with each other, take concerted action, influence human physiology, alter human thinking, and work together to change their environment. The bacteria in your gut are talking to each other, and to you, and you are talking back to them. The mind boggles. [more inside]
posted by exphysicist345 on Oct 19, 2010 - 55 comments

panda defence

The panda: surprisingly good at life - "New research has revealed that, contrary to popular beliefs, pandas are surprisingly well-equipped for survival." (via ners)
posted by kliuless on Oct 16, 2010 - 35 comments

An Artificial Ovary

Using a 3-D petri dish, Researchers at Brown University and Women & Infants Hospital of Rhode Island have built a completely functional artificial human ovary that will allow doctors to harvest immature human egg cells (oocytes) and grow them into mature, ready-to-be-fertilized human eggs outside the body. (In vitro) The advance could eventually help preserve fertility for women facing chemotherapy or other medical treatments that may be destructive to ovarian folliculogenesis. Press Release. Article link. (paywall) [more inside]
posted by zarq on Sep 29, 2010 - 24 comments

Hello

(over-simplified) Anatomy of a Typical Phone Conversation
posted by ocha-no-mizu on Sep 29, 2010 - 19 comments

The beauty of Molecular, Cell, and Microbiology

There has been a new discipline developing in molecular biology for some time now, Bioanimation! Projects have ranged in size from WEHI's colossal compilation to Harvard Biovision's magnum opus "Inner Life of the Cell" to commercially produced masterpieces to smaller projects by university PIs and enthusiasts. much [more inside]
posted by Blasdelb on Sep 25, 2010 - 29 comments

George C Williams

Influential evolutionary biologist George C. Williams (1926-2010) has passed away. [more inside]
posted by AceRock on Sep 10, 2010 - 10 comments

Theocracy at the end of a Pipetman

With the passing of Executive Order 13505, Removing Barriers to Responsible Scientific Research Involving Human Stem Cells, in 2009 President Obama expanded federal funding and rescinded George W. Bush's policies that eliminated most federal funding and restricted human embryonic stem cell research to the use of existing, contaminated cell lines. On Monday, federal judge Royce C. Lamberth blocked this new order after protestations from James L. Sherley, a former scientist with the Boston Biomedical Research Institute, and Theresa Deisher, who operates the Ave Maria Biotechnology Company, which aims to do "pro-life" therapeutic research without the "taint of embryonic or electively aborted fetal materials". [more inside]
posted by Blazecock Pileon on Aug 25, 2010 - 45 comments

nom nom nom OH MY GOD

You know what's great about Hawaii? Its isolation can produce interesting forms of life, such as Eupethecia staurophragma i.e. carnivorous caterpillars! Don't believe it? Watch the video or view the photos (via boingboing).

Aww, are you giant carnivorous centipede lovers feeling neglected? No, problem Mefi has covered that.
posted by nomadicink on Aug 18, 2010 - 21 comments

Kurzweil vs. Myers

Ray Kurzweil: Reverse-Engineering of Human Brain Likely by 2030. PZ Myers: Ray Kurzweil does not understand the brain.
posted by homunculus on Aug 18, 2010 - 195 comments

You Dirty Chicken Plucker

Howard Bloom: Exercising the Animals in the Brain [more inside]
posted by nola on Aug 9, 2010 - 25 comments

Gamers Are Credit To Team!

Today's issue of Nature contains a paper with a rather unusual author list. Read past the standard collection of academics, and the final author credited is... the FoldIt multiplayer online gaming community. Even though most of them had no biochemistry experience, the human players of FoldIt turned out to be better at identifying three-dimensional protein structure patterns than the algorithms of Rosetta@Home. (Previously on MeFi)
posted by zarq on Aug 5, 2010 - 12 comments

Die Young, Live Fast: The Evolution of an Underclass

Die young, live fast: the evolution of an underclass [more inside]
posted by modernnomad on Jul 23, 2010 - 78 comments

The Domestication of Man: The Social Implications of Darwin

New Adventures in Recent Evolution - In the last few years, biologists peering into the human genome have found evidence of recent natural selection. cf. Social Darwinism: 21st century edition [previously] (via ip) [more inside]
posted by kliuless on Jul 20, 2010 - 19 comments

What, if Anything, Is Big Bird?

Paedomorphic flightlessness and taxonomic affinities of an enormous Recent bird is a talk on the anatomy and evolutionary history of a certain flightless bird indigenous to New York City.
posted by CrunchyFrog on Jul 14, 2010 - 16 comments

But will I be able to build my very own Milla Jovovich?

Sir, Your Liver Is Ready: Behind the Scenes of Bioprinting (Previously on MeFi)
posted by zarq on Jul 12, 2010 - 9 comments

Free will vs. Modern-day Criminal Justice System

The Lucretian swerve: The biological basis of human behavior and the criminal justice system
As de Duve has written, “If … neuronal events in the brain determine behavior, irrespective of whether they are conscious or unconscious, it is hard to find room for free will. But if free will does not exist, there can be no responsibility, and the structure of human societies must be revised”.
Ben Libet & free will, previously on metafilter. (And more on: Lucretius, Dualism, Philosophy of mind, and Free Will 1, 2.)
posted by scalespace on Jul 6, 2010 - 100 comments

Adaptation to High Altitude in Tibet

Tibetans May Be Fastest Evolutionary Adapters Ever. "A group of scientists in China, Denmark and the U.S. recently documented the fastest genetic change observed in humans. According to their findings, Tibetan adaption to high altitude might have taken just 3,000 years. That's a flash, in terms of evolutionary time, but it's one that's in dispute."
posted by homunculus on Jul 2, 2010 - 12 comments

Nature / Nurture / Talent

Vanessa Mae Nicholson is one of Britain’s most successful young musicians. A classical violinist and former child prodigy who self-describes her crossover style as "violin techno-acoustic fusion," her fans praise her modern creativity and frenetic, lightning-fast riffs. But is her talent learned or genetic? Documentary from BBC1 in 2008: Vanessa Mae - The Making of Me: 1, 2, 3, 4, 5, 6. [more inside]
posted by zarq on Jun 21, 2010 - 18 comments

The Authors Forgot About Rock and Roll

An article in the June issue of Proceedings of the Royal Society of the Biological Sciences finds that "differences in reproductive strategies are driving individuals' different views on recreational drugs": namely, that views on sexual promiscuity are more closely related to views on recreational drug use than religion, political affiliation or other predictors. The study suggests attitudes against recreational drug use are an evolutionary attempt to promote reproductive stability.
posted by l33tpolicywonk on Jun 16, 2010 - 21 comments

Man As Industrial Palace

Artist Henning Lederer has adapted Fritz Kahn's illustration "Man As Industrial Palace" [previously] as an interactive installation. [via SciencePunk]
posted by brundlefly on Jun 14, 2010 - 2 comments

false eyes

Fake Eyes "To small tropical birds foraging on the rainforest floor, those two scowling eyes peering back at them from between the leaves could be a predator. But they also could belong to one of the hundreds of caterpillar species that have evolved eyelike spots and patterns to trick feasting birds."
posted by dhruva on Jun 14, 2010 - 43 comments

Parasite Parade

The parasite Toxoplasma makes rats lust for cat pee and people drive motorbikes. Other behaviour-modifying parasites include Cordyceps (YouTube) and Sacculina. (Warning: Icky.)
posted by Zarkonnen on Jun 4, 2010 - 33 comments

Venter creates spiraling coils of self-replicating DNA.

"The ability to design and create new forms of life marks a turning-point in the history of our species and our planet." - Freeman Dyson, on the J.C. Venter Institute's creation of a cell controlled by a synthetic genome. We are now in the business of engineering life.
posted by BoatMeme on May 20, 2010 - 62 comments

DrosophApocalypse Now

Circus of the Spineless #50 - the 50th in a series of collections of scientists' favorite disgusting, glorious, and gloriously disgusting invertebrates. Previously
posted by Burhanistan on May 7, 2010 - 7 comments

Sequencing of the Neandertal genome completed

Neandertals are the closest ancestral relatives to modern humans. Today, Nature published a special report on the Neandertal genome, for which a draft sequencing of three billion nucleotides has been completed. This high-throughput sequencing project shows how the genetic relationship between Neandertals and modern Europeans and Asians suggests localized interbreeding between the two species roughly 40-80,000 years ago, complicating the common "out-of-Africa" story of how modern humans originated. Additional research extends this low-coverage, first-pass sequencing with a microarray approach that uncovers specific differences between the human and Neandertal genomes.
posted by Blazecock Pileon on May 6, 2010 - 75 comments

The Linux Gene Network

Yale scientists analogize the Linux call graph with the E. coli gene regulatory network in an open access PNAS article. Carl Zimmer explores the implications of network design versus evolution, suggesting that a more modular architecture in bacteria leads to a rugged (i.e. robust) system that does not "crash" like a computer.
posted by jjray on May 5, 2010 - 26 comments

A general theory of individuality

We Need a General Theory of Individuality : "One of the unspoken secrets in basic scientific research, from anthropology to zoology (with intervening stops at physiology, political science, psychology, psychiatry, and sociology) is that, nearly always, individuals turn out to be different from one another, and that—to an extent rarely admitted and virtually never pursued—scientific generalizations tend to hush up those differences"
posted by dhruva on May 5, 2010 - 75 comments

Life, rekindled.

How does an ecosystem rebound from catastrophe? Thirty years after the blast, Mount St. Helens is reborn again. Interactive Graphic: Blast Zone. Also see National Geographic's feature article from 1981, chronicling that year's eruption. Previously on MeFi [more inside]
posted by zarq on Apr 20, 2010 - 18 comments

A new branch of animal life is discovered

Meet three new species of Loricifera, the first multicellular forms of life found that can live entirely without oxygen (figures and full article, PDF). [more inside]
posted by Blazecock Pileon on Apr 8, 2010 - 30 comments

You can never win a game of slaps with a squid

I am a giant squid. I swam up from the briny ocean depths. I have a computer, with a specially-modified tentacle-friendly interface. I have a fast internet connection. I seek to learn about humans and about the world. I have read much on the internet. Yet still, I have many unanswered questions. And you must have questions of me. We have much to learn from one another. To this end, I have developed the assortment of quizzes, games and activities you find before you. They form part of my ongoing campaign to facilitate improved human-squid relations. Try them out, you will most certainly learn something about squid.
posted by Rhaomi on Apr 5, 2010 - 42 comments

"You Can't Patent Nature"

Followup to this post: A US District Court has ruled that Myriad Genetic's patents on breast cancer genes BRCA1 and BRCA2, which allow them to hold exclusive rights to a widely used genetic test for inherited breast and ovarian cancer susceptibility, are invalid. Genomics Law Report analyzes the ruling in two posts. The decision is likely to be challenged in a legal appeal — but if upheld, it could have huge implications for the biotechnology industry. [more inside]
posted by zarq on Mar 31, 2010 - 51 comments

I'll have a glass of sea water, hold the salt

Researchers at MIT and in Korea have developed a new, efficient desalinization nanotechnology that could theoretically lead to small, portable units powered by solar cells or batteries, yet deliver enough potable fresh water from seawater to supply the needs of a family or small village. As an added bonus, the system would simultaneously remove many contaminants, viruses and bacteria. MIT Press Release. Abstract and Supplementary Information from Nature Nanotechnology. (pdf) [more inside]
posted by zarq on Mar 24, 2010 - 32 comments

Whence Altruism?

A new study suggests that humanity's sense of fair play and kindness towards strangers is determined by culture, not genetics. Speculation: the finding may be directly related to the rise of religion in human history, as well as more complex economies. (Via). [more inside]
posted by zarq on Mar 22, 2010 - 49 comments

Misunderstanding Darwin

Misunderstanding Darwin: Natural selection’s secular critics get it wrong. Ned Block and Philip Kitcher review Jerry Fodor's (previously) and Massimo Piattelli-Palmarini's book What Darwin Got Wrong. Fodor and Piattelli-Palmarini respond: “Misunderstanding Darwin”: An Exchange.
posted by homunculus on Mar 20, 2010 - 62 comments

Dosin' the 'tocin

It may increase schadenfreude. It's an assistant to abortifacients and it's produced by stimulating the nipples. Got a clogged lizard? Your mom used it to turn off your brain for your own good. In women, it peaks at orgasm, but in men, it might be elevated throughout sex without peaking. And what do you mean "social" monogamy!? Is it the love 'em and leave 'em hormone?? Well, it's NOT Vasopressin For Her, contrary to what some people think. Is it an impedance to feminism? Could it be the key to treating Autism? Ism... ism... jism? YEP. It's in the jism! Its synthesis was the end of A Trail of Sulfa Research, and its master was awarded the Nobel Prize. (Chemistry, not Peace.) You can scent your loveletters with it, but sorry, peaches... you can't huff a good cuddle, but you might like to huff while you cuddle. Previously.
posted by Ambrosia Voyeur on Mar 14, 2010 - 48 comments

Targeting the Good Cell

Targeting the Good Cell: The Milwaukee Journal Sentinel covers the latest stem cell advances, built around a gripping 2008 series (1, 2, 3) about the competitive race to reprogram mature cells into functionally embryonic stem cells. [more inside]
posted by jjray on Mar 11, 2010 - 2 comments

Page: 1 2 3 4 5 6 7 8 ... 12
Posts