Life Sciences
grrlscientist | February 8, 2008tags: hedgehog, mammals, animals, photography, subway art, AMNH, NYC, NYCLife
I think this is a species of hedgehog,
as portrayed in tiles on the walls of the NYC uptown subway stop (A-B-C)
at 81st and Central Park West. (ISO, no zoom, no flash).
Image: GrrlScientist 2008. [wallpaper size].
Read more about the AMNH tile artworks and see the AMNH tile artworks photographic archives -- with all the animals identified.
tetrapodzoology | February 7, 2008
Time to do more astrapotheres. In the preceding article, we more or less introduced astrapotheres, had a quick look at their diversity, and ran through some of the basal forms. Here we get to the good stuff on astrapotheriid astrapotheres, on lifestyles, and on that question that keeps us all awake at night: just what the hell are astrapotheres anyway?
Astrapotheriid astrapotheres - the astrapotheres with particularly big canine tusks, a specialised narial region and other characters - appear to consist of two clades: Astrapotheriinae and Uruguaytheriinae. Besides Astrapotherium,…
clock | February 7, 2008Transparent Adult Zebra Fish Will Make Human Biology Even Clearer:
Zebrafish are genetically similar to humans and are good models for human biology and disease. Now, researchers at Children's Hospital Boston have created a zebrafish that is transparent throughout its life. The new fish allows scientists to directly view its internal organs, and observe processes like tumor metastasis and blood production after bone-marrow transplant in a living organism.
Oldest Horseshoe Crab Fossil Found, 100 Million Years Old:
Few modern animals are as deserving of the title "living fossil" as the lowly…
grrlscientist | February 7, 2008tags: katydid, insects, invertebrates, photography, subway art, AMNH, NYC, NYCLife
I think this is a species of Katydid,
as portrayed in tiles on the walls of the NYC uptown subway stop (A-B-C)
at 81st and Central Park West. (ISO, no zoom, no flash).
Image: GrrlScientist 2008. [wallpaper size].
Read more about the AMNH tile artworks and see the AMNH tile artworks photographic archives -- with all the animals identified.
pharyngula | February 7, 2008Fresh from his recent reappearance on KKMS, where he debated me with a new strategy which gave him a slight chance of winning (i.e., one in which I was not present), Geoffrey Simmons is now crowing victory. It's very strange. Why would anyone with any sense think that demanding a 'debate' in which one is unopposed and has a sympathetic moderator and which suppresses audience input is in any way anything but an act of cowardice and intellectual bankruptcy?
This is posted on Evolution News and Views, the Discovery Institute's version of Pravda, but since they don't bother to link to any of my…
grrlscientist | February 6, 2008tags: reptiles, Galapagos giant tortoise, Geochelone elephantopus, photography, subway art, AMNH, NYC, NYCLife
Galapagos giant tortoise, Geochelone elephantopus
(but I am not sure of the subspecies),
as portrayed in tiles on the walls of the NYC uptown subway stop (A-B-C)
at 81st and Central Park West. (ISO, no zoom, no flash).
Image: GrrlScientist 2008. [wallpaper size].
Read more about the AMNH tile artworks and see the AMNH tile artworks photographic archives -- with all the animals identified.
tetrapodzoology | February 6, 2008
While googling for astrapothere images recently I came across the image used here: wow! This is a life-sized reconstruction of the gigantic Miocene alligatoroid Purussaurus, first named in 1892 for P. brasiliensis from the Upper Miocene Solimões Formation of Brazil. Most of the salient features that are diagnostic for Purussaurus can be seen in the reconstruction: the snout is incredibly deep, wide, rounded at its tip, and decorated with bumps and ridges, the dorsal surface of the snout is strongly concave, the external bony nostril opening was proportionally huge and anteroposteriorly…
razib | February 5, 2008I hope you have yesterday's post "out of your system." I will admit here that I don't know if I was particularly intelligible, but the prose and formalism of Hamilton's paper isn't exactly the picture of transparency. I find his later works much more intelligible; I suspect part of it has to do with the fact that Hamilton was responding and extending a tradition of evolutionary genetic modeling which reached back to R. A. Fisher and continued into the 40s and 50s. Reading a paper in 2008 which presupposes familiarity with a corpus of work from nearly three generations in the past can be a…
clock | February 4, 2008There's some cool new stuff in PLoS Biology and PLoS Medicine this week. Here are my picks and you look around and see what you are interested in....
The Evolutionary and Developmental Foundations of Mathematics:
Understanding the evolutionary precursors of human mathematical ability is a highly active area of research in psychology and biology with a rich and interesting history. At one time, numerical abilities, like language, tool use, and culture, were thought to be uniquely human. However, at the turn of the 20th century, scientists showed more interest in the numerical abilities of…
grrlscientist | February 4, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
Male Wood Duck, Aix sponsa, 2005.
Image: Dave Rintoul, KSU [larger view].
Birds in Science
A species of hummingbird makes a chirping noise with its tail feathers, not its throat, a study using high-speed video has suggested. The exact source of the noise from male Anna's hummingbirds has been the subject of debate among researchers. The loud chirp sound is produced by male Anna's hummingbirds, Calypte anna, as the birds dive towards the ground at speeds that exceed 50mph (80km/h) during their displays for nearby…
tetrapodzoology | February 3, 2008Anyone even vaguely interested in fossil mammals has the same problem at some time or another. You repeatedly encounter the same bizarre and fascinating beasts, long to know more about them, and yet have to endure a lifetime of frustration in the absence of any good, comprehensive information. Typically, one species in the group - usually, the most geologically recent, or the biggest, or the first-named - is figured and mentioned in all of the books, while all of the others languish in obscurity and may as well not exist.
An excellent example of this sort of thing is provided by the…
gregladen | February 2, 2008Of his time on the Beagle (1832 - 1836), Darwin wrote, "The voyage of the Beagle has been by far the most important event in my life and has determined my whole career." Of the manuscript describing that voyage, he wrote, "The success of this my first literary child always tickles my vanity more than that of any of my other books."
An early version of "The Voyage."Taking a cue from these reflections, I'd like to spend some time with this book. To begin with, it is appropriate to clear up some potential confusion. Or if not clearing it up, perhaps creating it because you may not be aware of…
grrlscientist | January 31, 2008tags: ladybugs, ladybirds, Coleoptera, photography, subway art, AMNH, NYC, NYCLife
Ladybugs, Coleoptera species.
as portrayed in tiles on the walls of the NYC uptown subway stop (A-B-C)
at 81st and Central Park West. (ISO, no zoom, no flash).
Image: GrrlScientist 2008. [wallpaper size].
Read more about the AMNH tile artworks and see the AMNH tile artworks photographic archives -- with all the animals identified.
grrlscientist | January 31, 2008tags: bats, little brown bats, Indiana bats, white nose syndrome, cavers, Alan Hicks
Hibernating bats suffering from the mysterious "White Nose Syndrome" (arrows).
Image: Alan Hicks, NYS Department of Environmental Conservation [larger view]
If you live in New York or Vermont, then you might have heard about the mystery disease that is killing tens of thousands of bats hibernating in caves and mines throughout these two states. The disease has been given the descriptive appellation, "white nose syndrome" because its most obvious symptom (besides death), is the peculiar ring of white fungus…
gregladen | January 31, 2008
Proposals to give the latter part of the present geological period (the Holocene) a new name ... the Anthropocene ... are misguided, scientifically invalid, and obnoxious. However, there is a use for a term that is closely related to "Anthropocene" and I propose that we adopt that term instead.
The pithy title of the paper making this proposal is "Are we now living in the Anthropocene" (sic: no question mark is included in this title, enigmatically).
It is not an entirely stupid idea. The paper argues that there are major changes of the type often used to distinguish between major…
jlynch | January 30, 2008Razib notes "I’m sure you know that Marx was a keen follower of Darwin’s theory." Eh, no. Not so much.
While Marx in 1860 described Origin as containing "the natural-historical basis of our outlook," by 1861 he was noting that "[i]t is remarkable how Darwin recognises among beasts and plants his English society with its labour, competition, opening up of new markets, 'inventions’, and the Malthusian 'struggle for existence’". Indeed he would view Darwinism as a bourgeois ideology which mirrored the bourgeois competitive struggle in capitalist society. Marx’s use of Darwin is underwhelming…
clock | January 29, 2008Synthesis Of Natural Molecule Could Lead To Better Anti-cancer Drugs:
In early 2007, Northwestern University chemist Karl Scheidt's interest was piqued when marine chemist Amy Wright reported in the Journal of Natural Products that a new natural compound derived from an uncommon deep-sea sponge was extremely effective at inhibiting cancer cell growth.
Ants And Avalanches: Insects On Coffee Plants Follow Widespread Natural Tendency:
Ever since a forward-thinking trio of physicists identified the phenomenon known as self-organized criticality---a mechanism by which complexity arises in nature…
oracknows | January 29, 2008In nondescript dressing room in a nondescript studio in a nondescript office building in in a nondescript industrial park, a short, pudgy 63-year-old man with the stereotypical demeanor of a particularly boring economist was trying to squeeze into a pair of shorts.
"Why oh why did I agree to do this?" he muttered in a whining drone.
He continued to struggle to get into the black shorts, virtually identical to the ones worn by English schoolboys and still worn by Angus Young of AC/DC on stage. Even though Young is over 50, somehow he managed to get into them, and so will I, thought the man.…
grrlscientist | January 28, 2008tags: sea turtle, photography, subway art, AMNH, NYC, NYCLife
An unknown (to me) species of sea turtle
(there are seven species to choose from)
as portrayed in tiles on the walls of the NYC uptown subway stop (A-B-C)
at 81st and Central Park West. (ISO, no zoom, no flash).
Image: GrrlScientist 2008 [wallpaper size].
Read more about the AMNH tile artworks and see the AMNH tile artworks photographic archives -- with all the animals identified.
grrlscientist | January 28, 2008tags: Birds in the News, BirdNews, ornithology, birds, avian, newsletter
The Little Bustard, Tetrax tetrax, is one of the birds that occurs in the new Special Protection Areas (SPAs) approved by the Portuguese government.
Image: Gabriel Sierra. [larger view].
Birds in Science
Scientists believe they could be a step closer to solving the mystery of how the first birds took to the air. A study published in the journal Nature suggests that the key to understanding the evolution of bird flight is the angle at which a bird flaps its wings. Scientists investigating this area tend to fall into…