Life Sciences
grrlscientist | May 3, 2009tags: 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 | May 3, 2009
Being confronted with a pack of wolves is bad enough, but if you happened to be in Alaska some 12,000 years ago, things would be much, much worse. Back then, the icy forests were patrolled by a sort of super-wolf. Larger and stronger than the modern gray wolf, this beast had bigger teeth and more powerful jaws, built to kill very large prey.
This uber-wolf was discovered by Jennifer Leonard and colleagues from the University of California, Los Angeles. The group were studying the remains of ancient gray wolves, frozen in permafrost in eastern Beringia, a region that includes Alaska and…
grrlscientist | May 1, 2009tags: HR669, pets, exotic animals, invasive species, pet animal trade, pet parrots, World Parrot Trust, politics
Those of you who are following the situation with HR669, the Nonnative Wildlife Invasion Prevention Act [full text : free PDF] know this resolution survived its initial House subcommittee hearing and will be heard again on an as-yet unnannounced date. Even though I support the stated purpose of this resolution -- preventing invasive nonnative wildlife from being introduced into the United States -- this bill, as written, will not accomplish that goal. I have been communicating with…
laelaps | April 30, 2009
The skull of Dorudon, photographed at the National Museum of Natural History.
There has been much ado about the new BioLogos website during the past week (see here and here), and most of it has focused on the site's aim of reconciling science and Christian theology. What irked me more, however, was the lazy way in which the creators of the site approached evolutionary science. The section on the fossil record provides a perfect example.
The evolution of whales has been a hot topic lately, and for good reason. After over a century of frustrating uncertainly we now have a very detailed (…
cwilcox | April 30, 2009Expedition Grizzlypremiering Sunday, May 3rd at 9 PM ET/PT
Did you know that a full grown grizzly is over 8 feet tall when it stands on its hind legs and can easily move a one ton boulder with its powerful arm muscles?
This Sunday is your chance to learn more about this fascinating animal. National Geographic Channel is premiering an up-close and in-depth look into the world of grizzly bears unlike any I've ever seen.
The special is hosted by biologist and bear expert Casey Anderson, who takes us along to look at what he does every year while tracking and monitoring the grizzly population in…
laelaps | April 29, 2009
A view from inside the cave in which the "Yemisch" remains were found. [source]
It was not so long ago that tales of an awful creature that stalked the pampas of Patagonia were commonly told. It was difficult, if not impossible, to find anyone who had actually seen it, but many knew of its fearsome power. It was called the Yemisch, and it was a predator that preferred to disembowel its prey. One moment a person or some cattle would be crossing the stream and the next the water would be a blood-red boil. All that was usually left of the victims were greasy entrails floating their way…
tetrapodzoology | April 28, 2009
Inspired by comments made following the emu dissection article from Monday, I got thinking about elongate tracheae in birds. As we'll see, this subject is fertile ground if you like serious weirdness and spectacular extremes [Trumpet manucodes shown here, from wikipedia.. all will become clear]. Before we get to that serious weirdness and those spectacular extremes, a bit of basic anatomy...
The trachea - or windpipe - is, as I'm sure you already know given that you've got one, a tube that extends along the ventral surface of the neck from the larynx to the lungs [singular: trachea, plural:…
clock | April 28, 2009There are 27 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, 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:
Pure Ultrasonic Communication in an Endemic Bornean Frog:
Huia cavitympanum, an endemic Bornean frog, is the first amphibian species known to emit exclusively ultrasonic (i.e., >20 kHz) vocal signals. To test the…
clock | April 27, 2009Biological Basis For The Eight-hour Workday?:
The circadian clock coordinates physiological and behavioral processes on a 24-hour rhythm, allowing animals to anticipate changes in their environment and prepare accordingly. Scientists already know that some genes are controlled by the clock and are turned on only one time during each 24-hour cycle.
Now, researchers at the University of Pennsylvania School of Medicine and the Salk Institute for Biological Studies found that some genes are switched on once every 12 or 8 hours, indicating that shorter cycles of the circadian rhythm are also…
grrlscientist | April 27, 2009tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Barn Owls, Tyto alba, have been used as
natural agricultural pest controllers around the world.
Image: Amir Ezer.
Birds in Technology
Here's a link to the US Air Force Avian Hazard Advisory System, a system that processes NOAA weather data in real time and uses it to provide bird-aircraft strike risk advisories. The website also shows the processed image loop of bird density data (with most of the weather removed). There also is an image gallery for you to look at. In these images, the yellows indicate lower activity…
cwilcox | April 26, 2009OK, I know I've done joeys before, but can you blame me? Look at these guys!
source
These adorable little tykes are rescues, saved after the recent bushfires. Here's a sobering fact I didn't know before: In some areas in Australia, joeys like these are killed en masse. Kangaroos, as it turns out, are becoming a pest in some areas of Australia because we've killed off a lot of their predators, leading to unchecked population growth. The adults are hunted to save them from starving or prevent damage done by hungry kangaroos entering populated areas where they can be dangerous to people. Any…
gregladen | April 25, 2009OK, not so new, but still relevant. The following is a repost of a review of this book.
New Smithsonian Field Guide Smithsonian Field Guide to the Birds of North America by Ted Floyd is a newcomer to the bird field guide scene. This guide offers a new combination of features that may make it the best choice as the primary guide for a small number of birders, and as an excellent second (or third) guide for most birdwatchers. Given the guide's qualities and price (it is not expensive) if you are a North American birder (anywhere in the region) this is a must-have for your collection,…
grrlscientist | April 24, 2009tags: Bronx Zoo, Wildlife Conservation Society, NYC Life, economic hardships
Asia Entrance to the Bronx Zoo.
Image: Stavenn/Wikipedia.
New York City's Bronx Zoo, the largest metropolitan wildlife preserve in the United States, is being hit hard by the economy. To prevent a $15 million budget shortfall, zoo officials are closing four exhibits and evicting all their occupants, estimated to number in the hundreds of animals.
Zoo officials admitted in a New York City Cultural Affairs Committee meeting today that they are forced to relocate the suddenly homeless deer, bats, foxes, antelopes…
grrlscientist | April 23, 2009tags: HR669, pets, exotic animals, invasive species, politics
Let's watch the legislative process in action: Subcommittee on Insular Affairs, Oceans and Wildlife Legislative Hearing on H.R. 669. [Archived Video].
Will anyone add this hearing footage to YouTube? For some mysterious reason, I cannot view it on my laptop and cannot find it on YouTube yet, either.
A brief synopsis of the Subcommittee Hearing:
The Subcommittee hearing was the first step for this bill. Chair Bordallo repeatedly stated that the committee members were there to learn and get input. When the meeting was adjorned,…
grrlscientist | April 23, 2009tags: HR669, pets, exotic animals, invasive species, politics
Let's watch the legislative process in action, live: Subcommittee on Insular Affairs, Oceans and Wildlife Legislative Hearing on H.R. 669 (10:00 AM -- 1324 Longworth).
Take Action Now.
HR 669 Links:
Will HR 669 Transform Your Exotic Animals into Illegal Aliens?
My detailed analysis of HR 669 and its impacts.
Video discussing some of the impacts HR 669 will have on exotic animal breeders, pet store owners and scientists.
Are you a scientist, conservation biologist, biomedical researcher or exotic animal breeder who will be…
grrlscientist | April 22, 2009tags: House Resolution 669, HR 669, The Nonnative Wildlife Invasion Prevention Act, legislation, pets, politics
Elektra, my female Solomon Islands eclectus parrot, Eclectus roratus solomonensis.
This is the smallest and most distinctively marked of all the subspecies of eclectus parrots.
Image: GrrlScientist 4 July 2008 [larger view].
A proposed new law, House Resolution #669 (HR 669), also known as The Nonnative Wildlife Invasion Prevention Act, is inching its way through congress [free PDF]. Tomorrow morning, it will be heard by the Subcommittee on Insular Affairs, Oceans and Wildlife.…
edyong | April 22, 2009
Seals and sea-lions gracefully careen through today's oceans with the help of legs that have become wide, flat flippers. But it was not always this way. Seals evolved from carnivorous ancestors that walked on land with sturdy legs; only later did these evolve into the flippers that the family is known for. Now, a beautifully new fossil called Puijila illustrates just what such early steps in seal evolution looked like. With four legs and a long tail, it must have resembled a large otter but it was, in fact, a walking seal.
Natalia Rybczynski unearthed the new animal at Devon Island, Canada…
sporte | April 22, 2009That's how new life forms are created every day in the wild, folks. Human researchers of course have added a few twists on the theme. If we can't induce bacteria or animal cells to collect new bits of DNA on their own, we turn to electroshock therapy. With plants.... aw heck, we just shoot them.
And where did this crazy rant come from you ask? Last Saturday morning, at the crack of 9 am I got to be interviewed on a radio program with two of the main spokespeople from the DIY bio movement, Mackenzie Cowell and Meredith Patterson.
The program was "The Food Chain" (you can listen to it…
cwilcox | April 22, 2009Since today is Earth Day, I've got all kinds of green, eco-friendly, conservation-type thoughts jumbling around in my head. I keep reading articles about how some rare alligator has a little hope or how some big rare fish got eaten, and thinking positively about the press surrounding our environment. All these daily, constant reminders about the status of species on the verge of collapse - this kind of awareness has got to be helping conserve those speices, right? But then I stumbled upon a PLoS ONE article that completely soured my mood.
Rarity of Tigers raises the value of their skinsvia…
clock | April 21, 2009There are 18 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, Connotea, Stumbleupon, Facebook and Digg) with just one click.
Also, check out the interview with our Section Editor for Aquatic and Marine Sciences, Craig McClain.
Here are my own picks for the week - you go and look for your own favourites:
Rare Species Are Valued Big Time:
It has recently been postulated that the value humans place on rarity could…