Posts

September 15, 2014

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5:00 PM | Wasps Build Colony on a Window, Create Amazing View
Rare chance to glimpse the internal structure of a bee's nest.
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4:56 PM | Anole Apartment Invasion: What Can Be Done?
AA reader Katharine from southern Florida writes: “I live on the 4th floor of a 4-story concrete constructed condominium building (6 units to a floor) with catwalks in S.E. Fl.  In front of the ground floor walkway of our building there is landscaping & ligustrum trees that reach up to the 2nd floor with catwalks with overhead lights on in […]
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4:34 PM | Happy Monday Morning! It’s the Celsius Quiz.
Celsius Quiz Sept 14 Blood Cancer Awareness Month
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4:20 PM | Applied evolutionary biology
 Two categories of evolutionary challenges result from escalating human impacts on the planet. The first arises from cancers, pathogens and pests that evolve too quickly, and the second from the inability of many valued species to adapt quickly enough. Applied evolutionary biology provides a suite of strategies to address these global challenges that threaten human health, food security, and biodiversity. This review highlights both progress and gaps in genetic, developmental and […]
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4:10 PM | Everyone but the rich white dudes knows what’s up
In May 1967, the Pentagon historians write: “McNaughton was also very deeply concerned about the breadth and intensity of public unrest and dissatisfaction with the [Vietnam] war … especially with young people, the underprivileged, the intelligentsia and the women.” 1967.  … Continue reading →
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4:06 PM | Poop Transplants Let Pack Rats Eat Poison
Can’t eat poison without dying? Maybe your gut microbes are to blame. Rodents in the Mojave Desert have evolved to eat toxic creosote bushes with the help of specialized gut bacteria. Although scientists had long suspected that bacteria might be key to the rats’ power, they proved it by feeding the rodents antibiotics and ground-up […]The post Poop Transplants Let Pack Rats Eat Poison appeared first on Inkfish.

Kohl KD, Weiss RB, Cox J, Dale C & Denise Dearing M (2014). Gut microbes of mammalian herbivores facilitate intake of plant toxins., Ecology letters, 17 (10) 1238-46. PMID: http://www.ncbi.nlm.nih.gov/pubmed/25040855

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3:06 PM | How Wolbachia Learned to Help Bedbugs
Wolbachia , Wolbachia , Wolbachia ! Though these ubiquitous insect symbionts a...
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3:06 PM | #IAmANaturalist: A Tribute
#IAmANaturalist because to try and understand a completely different way of living, of being, is to transcend oneself. -- Read more on ScientificAmerican.com
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3:00 PM | Epigenetics Links Prenatal Immunity and Autism
A mystery about the human brain is how its many regions develop and perform in unison. We are normally so blissfully unaware of our minds’ abilities, aren’t we?!!! Autism spectrum disorders show us how deficits in specific brain skills can cumulate to difficulties in communicating, learning, socializing and sensory perception. Forty six percent of the U.S. increase in ASD diagnoses, are calculated to be based on unknown environmental causes. Immunity challenges during critical […]
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3:00 PM | Epigenetics Links Prenatal Immunity and Autism
A mystery about the human brain is how its many regions develop and perform in unison. We are normally so blissfully unaware of our minds’ abilities, aren’t we?!!! Autism spectrum disorders show us how deficits in specific brain skills can cumulate to difficulties in communicating, learning, socializing and sensory perception. Forty six percent of the U.S. increase in ASD diagnoses, are calculated to be based on unknown environmental causes. Immunity challenges during critical […]
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2:48 PM | Breaking Bio #65 – Sex chromosomes & Math for Biologists with Dr. Melissa Wilson Sayres!
We sit down to talk about the evolution of sex chromosomes and the diversity of ways organisms determine sex with Dr. Melissa Wilson Sayres of Arizona State University. Dr. Wilson Sayres also explains why math is important for biologists, and how public outreach and engagement needs to become more common from practicing scientists. Find out(...)
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2:41 PM | Tutti i segreti del nostro orologio interno
Altro che Watch. Il vero orologio delle meraviglie già lo possediamo. È dentro le nostre cellule: si chiama orologio circadiano e modifica ciclicamente la fisiologia del corpo umano – in termini, per esempio, di pressione del sangue, temperatura, ciclo sonno-veglia – per farlo adattare al meglio sia alla giornata che alle stagioni. Gli ingranaggi che muovono le lancette dell'orologio circadiano sono quattro geni, Chryptochrome, Period, Clock e Bmal1: oggi, dopo anni di […]
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2:30 PM | Giant Dinosaur Could Fill Fossil 'Black Hole'
Titanosaurian remains are found on every continent but history outside of South America is less well known.
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2:14 PM | Polemiche sull’eterologa: in Lombardia si paga
La procreazione medicalmente assistita (Pma) con ricorso a donatori esterni alla coppia è legale, sia nel pubblico che nel privato: su questo i consensi sono unanimi. Ma in assenza di una legge condivisa a livello nazionale, non necessaria secondo Filomena Gallo, segretario dell’Associazione Luca Coscioni, persistono profonde discrepanze tra le normative previste dalle diverse regioni. In particolare, non è ancora chiaro se l’eterologa debba rientrare o meno nei […]
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2:14 PM | To inject or not inject?
Luciferase assays are useful tools for studying a wide range of biological questions. They can be performed easily by adding a reagent that provides components necessary to generate a luminescent signal directly to cells or a cell lysate. However, once this reagent has been added, how long you wait to measure the signal becomes a […]
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2:00 PM | Developmental robustness and species diversity: A special issue of Annals of Botany open for submissions
J.B.S. Haldane is often quoted to have said that ‘God has an inordinate fondness for beetles’. Arguably, Haldane himself would not have accepted this as an explanation for the enormous number of beetle species – they make up some 25 – 30 % of all described animals. However, Haldane’s statement demonstrates that we still lack […]
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2:00 PM | The conflict between science and religion as an “invented tradition”
Author:. Jaume Navarro received his PhD in history of science from the Universitat Autonoma de Barcelona (1998). He has been a researcher at the universities […] Read more The post The conflict between science and religion as an “invented tradition” appeared first on Mapping Ignorance. Related posts:Stories of the past as promises of the future Epistemology in the courts. Or, Sherlock Holmes is dead, long live to Thomas Bayes. Intelligence testing: a history of a fierce […]
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1:38 PM | Scelto il luogo di atterraggio per il lander di Rosetta
Prima scelta J, seconda C. Non stiamo dando lettere a caso, quanto piuttosto indicando i siti d'elezione, e di riserva, per l'atterraggio del lander Philae di Rosetta sulla cometa 67P/Churyumov–Gerasimenko, previsto per il prossimo 11 novembre. Ad annunciarli è stata oggi l'Esa che si occupa di gestire la missione. Il sito J si trova nella cosiddetta testa di 67P/Churyumov–Gerasimenko, e sarà il punto di arrivo per il lander che per la prima volta nella storia […]
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1:15 PM | Wellcome Trust Research Round-up: 15/09/14
Our fortnightly round-up of research news from the Wellcome Trust community… Risk of Ebola emergence mapped A new map identifies areas where animals are likely to be infected with the Ebola virus. The map is a first step towards understanding where future outbreaks of the disease may occur. The map, based on a model created […]
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1:10 PM | Ancient Giant Sloth Species Got Huge Fast
Some sloth lineages grew more than 220 pounds every million years, one of the fastest body growth rates known in the evolution of mammals.
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12:55 PM | Polar Bear Cubs Flown to Zoo
Well...it was the Henry Vilas Zoo and it was 1988. But it is a chapter in the 50-year anniversary of a father's and son's service to the Madsion, Wisconsin zoo. It was Dad's first and last plane trip."One of the polar bear cubs Richard [Walter] retrieved from Alaska in 1988 — his name is Nanuq — is still owned by the Vilas Zoo. He is on loan to a zoo in Ohio, being mated to two females, and unlikely to return. At 26, Nanuq is near the end of the line."The NC Zoo is on the lookout […]
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12:42 PM | Quanto cresce l'epidemia di ebola?
La matematica dell’epidemia di ebola non può ridursi alla semplice conta delle persone infettate e dei morti (anche se con quasi 5.000 casi e 2.400 morti nei paesi più colpiti è già abbastanza chiaro il quadro della malattia). Indagare tra i numeri dell’epidemia significa per esempio capire anche a che tasso si è diffuso e si sta diffondendo il virus, cercando di estrapolare delle previsioni (come già fatto da alcuni esperti). Stavolta a […]
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12:40 PM | Egypt's Ancient Animals Killed by Climate and Civilization
Animal bones and images of animals on ancient artifacts reveal what creatures once roamed the region.
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11:30 AM | Rhinoceros beetle's horn shape reflects fighting style
The elaborate horns of rhinoceros beetles vary in subtle ways that allow each species to handle the stress and strain of its specific style of battle.
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9:59 AM | Navi autonome, senza equipaggio
Una nave, lunga 200 metri, si muove lentamente sulla superficie scura del mare. Nessuno al timone, il ponte è silenzioso, e anche la sala motori è vuota. No, non e' la scena di un film horror ambientato su un vascello fantasma. È invece il nuovo, ambizioso progetto Munin dell'Unione Europea. I ricercatori della Marintek, infatti, sono convinti che tra meno di venti anni saraà possibile avere navi cargo lunghe 200 metri che solcano gli oceani senza alcun bisogno di un […]
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9:57 AM | Turritopsis Dohrnii - Is It Really Immortal?
The "Immortal" JellyfishCredit: Peter Schuchert/The Hydrozoa DirectoryKingdom: AnimaliaPhylum: CnidariaClass: HydrozoaOrder: AnthoathecataFamily: OceaniidaeGenus: TurritopsisSpecies: Turritopsis dohrnii (formerly classified as T. nutricula.)Common Name: The immortal jellyfishMost of the animals featured on the site are chosen based on their unusual looks. However, this not the case with Turritopsis dohrnii, which seemingly has no notable morphological characteristics. On the outside, […]

Martínez DE (1998). Mortality patterns suggest lack of senescence in hydra., Experimental gerontology, 33 (3) 217-25. PMID: http://www.ncbi.nlm.nih.gov/pubmed/9615920

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9:43 AM | Scoperto uno dei più antichi amuleti cristiani
Grazie all’uso di tecniche di indagine scientifica integrate con metodi tipici degli studi umanistici è stata scoperta una delle più antiche testimonianze del primo cristianesimo: un papiro risalente a circa 1.400 anni fa, che contiene riferimenti all’Ultima Cena e altri passi del Vecchio e del Nuovo Testamento. Il documento, conservato nella John Rylands Library dell'Università di Manchester,non è mai studiato prima, e potrebbe essere stato utilizzato in […]
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7:46 AM | Sunday Chess Problem
This week I want to build on something I discussed near the end of last week’s problem. I mentioned that a problem’s genre should in some way complement its theme. So, if your problem is a selfmate, it is better if the theme employs logic that is specific to the selfmate genre. If your idea…
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7:35 AM | Is GDF11 the elixir of youth?
Young mice have more of a molecule called GDF11 circulating in their blood than old mice. When GDF11 is given to old mice, it can reverse age-related heart disease. GDF11 has anti-ageing effects in flies as well. Flies that express more of the fly version of GDF11, called myoglianin, live longer than normal flies. They also […]
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7:00 AM | The Bogus Haunting That Fooled A King
People conning each other is as old as history. While we in the modern age are taken in by sophisticated scams, in the more simple time of the Middle Ages, cons would seem childish and even comic in our eyes. One such hilarious scheme was pulled of by a group of monks, who instigated a haunting straight out of Scooby Doo to scam the King of France into handing over royal property. The post The Bogus Haunting That Fooled A King appeared first on KnowledgeNuts.
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