Life Sciences
clock | February 1, 2010There are 21 new articles in PLoS ONE today. As always, you should rate the articles, post notes and comments and send trackbacks when you blog about the papers. You can now also easily place articles on various social services (CiteULike, Mendeley, Connotea, Stumbleupon, Facebook and Digg) with just one click. Here are my own picks for the week - you go and look for your own favourites:
Drinking and Flying: Does Alcohol Consumption Affect the Flight and Echolocation Performance of Phyllostomid Bats?:
In the wild, frugivorous and nectarivorous bats often eat fermenting fruits and nectar,…
grrlscientist | January 31, 2010tags: Birdbooker Report, bird books, animal books, natural history books, ecology books
"How does one distinguish a truly civilized nation from an aggregation of
barbarians? That is easy. A civilized country produces much good bird
literature."
--Edgar Kincaid
The Birdbooker Report is a special weekly report of a wide variety of science, nature and behavior books that currently are, or soon will be available for purchase. This report is written by one of my Seattle birding pals and book collector, Ian "Birdbooker" Paulsen, and is edited by me and published here for your information and…
edyong | January 28, 2010
When our lives are in danger, some humans go on the run, seeking refuge in other countries far away from the threats of home. Animals too migrate to escape danger but one group - the pond-living bdelloid rotifers - have taken this game of hide-and-seek to an extreme.
If they are threatened by parasitic fungi, they completely remove any trace of water in their bodies, drying themselves out to a degree that their parasites can't stand. In this desiccated state, they ride the wind to safety, seeking fresh pastures where they can establish new populations free of any parasites.
This…
clock | January 28, 2010There are 26 new articles in PLoS ONE today. As always, you should rate the articles, post notes and comments and send trackbacks when you blog about the papers. You can now also easily place articles on various social services (CiteULike, Mendeley, Connotea, Stumbleupon, Facebook and Digg) with just one click. Here are my own picks for the week - you go and look for your own favourites:
Development and Field Evaluation of a Synthetic Mosquito Lure That Is More Attractive than Humans:
Disease transmitting mosquitoes locate humans and other blood hosts by identifying their characteristic…
sa smith | January 27, 2010
This is a repost from the old ERV. A retrotransposed ERV :P
The Proceedings of the National Academy of Science have a special online edition focused on the place of evilution in medicine.
Shorter Michael Egnor:
:-O
Hat tip to Pharyngula.
Oops. Dr. Egnor, Mr. Professor of Neurosurgery, doesnt seem to have learned a lesson from Mr. 99. And now hes going to get made fun of by a 23 year old girl, too. Someone get a Ziploc bag for his testicles.
Really, it's a funny question. Think about it. Would anyone sponsor an essay contest on 'Why I would want my doctor to study anatomy' or 'Why I…
cwilcox | January 26, 2010Man's best friend is much more than a household companion - for centuries, artificial selection in dogs has made them prime examples of the possibilities of evolution. A century and a half ago, Charles Darwin recognized how the incredibly diverse dogs supported his revolutionary theory in his famous book On The Origin Of Species. At the time, he believed that dogs varied so much that they must have been domesticated from multiple canine species. Even still, he speculated that:
if... it could be shown that the greyhound, bloodhound, terrier, spaniel and bull-dog, which we all know propagate…
neurophilosophy | January 21, 2010OUR ability to use and manipulate numbers is integral to everyday life - we use them to label, rank, count and measure almost everything we encounter. It was long thought that numerical competence is dependent on language and, therefore, that numerosity is restricted to our species. Although the symbolic representation of numbers, using numerals and words, is indeed unique to humans, we now know that animals are also capable of manipulating numerical information.
One study published in 1998, for example, showed that rhesus monkeys can form spontaneous representations of small numbers and…
tetrapodzoology | January 21, 2010
Today is January 21st which means, believe it or don't, that it's Tet Zoo's birthday, the 4th no less. Holy crap... have I really been blogging for four years? Yikes, and there is still so much to do, so little ground I've covered. This is despite more than 635 (count 'em) Tet Zoo articles here on ScienceBlogs alone. As on some (but not all) of the previous occasions, this article is going to be a personal look back at the year, not a proper review of all the Tet Zoo-relevant stuff that happened in 2009 (wow, wish I had time for that). Actually, this is just about the worst time to write a…
edyong | January 18, 2010The mighty insect colonies of ants, termites and bees have been described as superorganisms. Through the concerted action of many bodies working towards a common goal, they can achieve great feats of architecture, agriculture and warfare that individual insects cannot.
That's more than just an evocative metaphor. Chen Hou from Arizona State University has found that the same mathematical principles govern the lives of insect colonies and individual animals. You could predict how quickly an individual insect grows or burn food, how much effort it puts into reproduction and how long it lives…
jstemwedel | January 15, 2010Longtime readers of this blog may recall that the elder Free-Ride offspring has a fondness (occasionally verging on obsession) for Pokemon cards. This means I had no choice but to involve my offspring in Dave Ng's Phylomon project:
[W]hat can we do to get kids engaged with the wonderful creatures that are all around them? They obviously have the ability and the passion to care about such things, but it appears misplaced - they'll spend a ton of resources and time tracking down fictional things, when they could easily do the same with the very wildlife around them. As a bonus, if they do…
grrlscientist | January 13, 2010tags: evolutionary biology, behavioral ecology, migration, microtechnology, geolocator, natural history, biological hotspots, longest migration, seabirds, Arctic Tern, Sterna paradisaea, researchblogging.org,peer-reviewed research, peer-reviewed paper
Arctic Tern, Sterna paradisaea, Iceland.
Image: Arthur Morris, Birds as Art, 2007 [larger view].
Canon 400mm f/5.6L lens (handheld) with the EOS-1D Mark III. ISO 200. Evaluative metering +1/3 stop: 1/1000 sec. at f/5.6 in Manual mode. Manual Flash with Better Beamer at 1:1.
For decades, it was widely suspected that a small seabird, the…
cwilcox | January 13, 2010Tilapia has quickly risen the ranks as an important aquaculture fish. It's third in production behind carps and salmon, with over 1,500,000 metric tons produced every year. They're ideal fish farm species because they're omnivorous, fairly big, quick-growing, tolerate high densities quite well and are mighty tasty.
More than anything else, tilapia are hailed as one of aquaculture's greatest successes. Cheap and easy, they breed well and are considered far more environmentally friendly than other species because they can be fed a vegetarian diet. Conservation organizations have even set up a…
clock | January 13, 2010There are 42 new articles in PLoS ONE today. As always, you should rate the articles, post notes and comments and send trackbacks when you blog about the papers. You can now also easily place articles on various social services (CiteULike, Mendeley, Connotea, Stumbleupon, Facebook and Digg) with just one click. Here are my own picks for the week - you go and look for your own favourites:
DNA from the Past Informs Ex Situ Conservation for the Future: An "Extinct" Species of Galápagos Tortoise Identified in Captivity:
Although not unusual to find captive relicts of species lost in the wild…
tqa | January 12, 2010
It's been a long time since I've responded to an Uncommon Descent post, and I'm starting to remember why. There's one that went up over there the other day on the fossil record that's really almost mind numbing - starting with the title, which is "Why Not Accept the Fossil Record at Face Value Instead of Imposing a Theory on it?"
Here's what seems to be the main argument:
Hereâs a simple example â extinction estimates. Darwinists will say that 99.99% of species that have ever lived have gone extinct. Well, thatâs actually a bunch of B.S. There are roughly 250,000 species that have been…
cagapakis | January 12, 2010I am kind of obsessed with symbiosis and the idea that cooperation between different species can be a driver of evolutionary change. I learned about these symbiotic green sea slugs a while back from a colleague whose mom is a zoologist who studies the evolution of symbiosis between invertebrates and photosynthetic microorganisms. A review article from her lab beautifully introduces the amazing properties of Elysia chlorotica:
Faced with life without a protective shell in a predatory environment, some sea slugs evolved a protective mechanism dependent largely upon camouflage pro- vided by…
laelaps | January 12, 2010
Restoration of the skull of Thylacoleo. From The Ancient Life History of the Earth.
Thylacoleo was one strange mammal. A close relative of living koalas, kangaroos, and wombats, the largest species of Thylacoleo were lion-sized carnivores that stalked the Australian continent between 2 million and 45 thousand years ago. Despite its popular nickname "marsupial lion", however, Thylacoleo was quite different from any feline predator. Even though its long forelimbs were tipped with retractable claws its skull more closely resembled that of a koala, with curved incisors set in front of a pair…
cagapakis | January 11, 2010My first exposure to programming was as a nerdy elementary schooler playing with Logo, a simple computer language written for educational use as a way to teach basic concepts in programming and computer science. The language controls the behavior of the "turtle," a triangular cursor in the middle of the screen that can be programmed to move around and draw lines.
In one of the kid's versions I remember that the cursor even looked like a little turtle on the screen, not just a triangle. As you probably could tell, I'm fascinated by how computer scientists use language from living things and…
awild | January 8, 2010ANT COURSE 2010
Danum Valley Field Centre, Sabah Borneo, August 16 - 26
DEADLINE FOR APPLICATION: April 1, 2010
click here for application form
COURSE OBJECTIVES. â ANT COURSE is designed for systematists, ecologists, behaviorists, conservation biologists, and other biologists whose research responsibilities require a greater understanding of ant taxonomy and field research techniques. Emphasis is on the identification of the ant genera and species occurring in Southeast Asia. Lectures will include background information on the ecology, life histories and evolution of ants. Field trips…
clock | January 8, 2010There are 20 new articles in PLoS ONE today (and there were 14 yesterday). As always, you should rate the articles, post notes and comments and send trackbacks when you blog about the papers. You can now also easily place articles on various social services (CiteULike, Mendeley, Connotea, Stumbleupon, Facebook and Digg) with just one click. Here are my own picks for the week - you go and look for your own favourites:
Role of the Amygdala in Antidepressant Effects on Hippocampal Cell Proliferation and Survival and on Depression-like Behavior in the Rat:
The stimulation of adult hippocampal…
revere | January 8, 2010Let me start with an apology. This post is again fairly long (for a blog post). Blog readers don't like long posts (at least I don't). But once I started writing about this I was unable to stop at some intermediary point, although I might have made it more concise and less conversational. I haven't done either. Even worse, I didn't quite finish with the single point I wanted to make, so it will be continued in the next post. Hence the apology. Now to recap a bit and then get down to business.
My "challenge" from 10 days ago has drawn quite a response: over 40 quite substantive comments on the…