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There Be Dragons? Creatures You Might Find On A Real Journey To The Centre Of The Earth

Edit IFL Science 25 Apr 2016
In some North American caves, you may find Mexican tetras (Astyanax mexicanus or blind cave fish) or the Texas blind salamander (Eurycea rathbuni). Some Astyanax have eyes and others don’t and the two can interbreed, providing valuable evidence that species can vary and evolve hundreds of metres underground ... Astyanax and Eurycea use pressure sensors to detect food and Proteus has the most sensitive sense of smell of any amphibian ... ....

The Trojan Women at Obsidian Offers a Modern Overlay on an Ancient Tale

Edit Houston Press 19 Feb 2016
The set-up. ... The execution. ... Her husband, her many sons, and all the men of Troy have been slaughtered; her youngest daughter Polyxena has been sacrificed at the altar of warrior-god Achilles; her seeress daughter Cassandra raped and given to Menelaus as concubine; her grandson Astyanax, feared by the conquerors for his parentage, is condemned to be thrown from the burning towers of Troy ... The gods are silent and unforgiving ... Contact. D. L....

New translation of the Iliad by Caroline Alexander – extract

Edit The Guardian 09 Feb 2016
Read a short section from the latest edition of Homer’s great epic of the Trojan wars – the first English translation by a woman. Book One. Lines 1-21. Wrath – sing, goddess, of the ruinous wrath of Peleus’ son Achilles,. that inflicted woes without number upon the Achaeans,. hurled forth to Hades many strong souls of warriors. and rendered their bodies prey for the dogs, ... Astyanax, lord of the city; for his father alone protected Ilion ... ....

Blind cave fish evolved a shrunken brain to save energy

Edit The Guardian 11 Sep 2015
At some point back in deep time, a group of fish were washed into a limestone cave somewhere in northeastern Mexico. With no way out and little more than bat droppings to eat, the fish began to adapt to their new troglodytic lifestyle. Unable to see other members of their group in the dark, they lost their colourful pigmentation ... The blind cave fish Astyanax mexicanus is adapted to its subterranean environment in other ways ... Related ... Sci....

Blind cave fish evolved an energy-saving shrunken brain

Edit The Guardian 11 Sep 2015
The Mexican tetra lost its eyes - as well as a significant portion of its brain - to ensure survival in a subterranean environment. At some point back in deep time, a group of fish were washed into a limestone cave somewhere in northeastern Mexico ... This was accompanied by a dramatic reduction in the size of the brain’s visual system ... The blind cave fish Astyanax mexicanus is adapted to its subterranean environment in other ways ... Related....

Binge-Eating Cavefish Could Illuminate Human Obesity

Edit IFL Science 16 Jul 2015
Blind cavefish are very fat and remarkably starvation resistant, which is really useful as they live in dark, nutrient-poor environments. Once a year or so, when food is swept in by floods, they binge eat ... To understand the genetic underpinnings of these adaptations, Tabin’s team compared Mexican cavefish (Astyanax mexicanus) who dwell in caves to those who live in surface rivers ... They’re not unlike hibernating bears ... ....

Melanocortin 4 receptor mutations contribute to the adaptation of cavefish to nutrient-poor conditions

Edit PNAS 08 Jul 2015
Abstract. Despite recent advances in the understanding of morphological evolution, the genetic underpinnings of behavioral and physiological evolution remain largely unknown. Here, we study the metabolic changes that evolved in independently derived populations of the Mexican cavefish, Astyanax mexicanus. A hallmark of cave environments is scarcity of food ... ....

12 Shrubs That Attract Butterflies as a Caterpillar Food Source

Edit About.com 01 Jun 2015
The butterfly is a favored insect in many gardens. You can invite them in to help you get a better percentage of your flowers pollinated ... 1.  Bearberry. Latin Name. Arctostaphylos uva-ursi Family. Ericaceae Other Common Names ... Butterflies attracted to this species.Arizona purple (Limenitis astyanax arizonensis)Lorquin's admiral(Limenitis lorquini)Tiger swallowtail (Papilio glaucus)Weidemeyer's admiral (Limenitis weidemeyerii)....

NIH Awards UC Biologist $1.9 Million for Genetic Research (University of Cincinnati)

Edit noodls 12 Mar 2015
(Source. University of Cincinnati). NIH Awards UC Biologist $1.9 Million for Genetic Research ... Date. 3/12/2015 2.30.00 PM. By. Dawn Fuller. Phone. (513) 556-1823. Photos By. Jay Yocis Video by Amanda Powers ... The researchers are searching for genetic hints by examining a species of eyeless, cave-dwelling fish, Astyanax mexicanus - which has lived in the pitch-black caves of the Sierra de El Abra region of Mexico for millions of years ... (noodl....

Blind Mexican Cavefish Genome May Provide Insight to Human Eye Disease (University of Cincinnati)

Edit noodls 31 Oct 2014
(Source. University of Cincinnati) Blind Mexican Cavefish Genome May Provide Insight to Human Eye Disease. A UC professor and a doctoral student's recent research lists genes that may be responsible for certain evolutionary traits among blind Mexican cavefish. Date ... By ... Phone ... University of Cincinnati biologists' recent research lists candidate genes for the evolutionary characteristics of the blind Mexican cavefish, Astyanax mexicanus....

U of M study: Blind cave fish may provide insight on eye disease and other human health issues (University of Minnesota)

Edit noodls 20 Oct 2014
McGaugh and colleagues from 10 institutions around the world, including Harvard University and the University of Maryland, detail the first-ever de novo genome assembly for a species of blind cave fish (Astyanax mexicanus) commonly known as the Mexican tetra fish. The work is notable because the Astyanax genome will allow dissection of the genetic ......

Blind Cavefish Froze Its Internal Clock to Save Energy

Edit Yahoo Daily News 29 Sep 2014
Some creatures will go to great lengths just to save a little energy ... The blind Mexican tetra or cavefish (Astyanax mexicanus) saves energy by forgoing circadian rhythms, according to researchers at Lund University in Sweden ... This clock provides one of its most important functions by controlling metabolism, or the chemical reactions involved in maintaining healthy cells and breaking down molecules to gain energy ... [In Images ... mexicanus....

Zoologger: The blind fish that sucks it and 'sees'

Edit New Scientist 04 Apr 2014
Zoologger is our weekly column highlighting extraordinary animals – and occasionally other organisms – from around the world. Species. Astyanax mexicanus (sometimes called A. fasciatus mexicanus). Habitat. Deep, flooded caves in north-east Mexico and neighbouring countries, and possibly an aquarium near you ... Now we know its secret ... Although some Astyanax mexicanus live in open water, many populations have set up home in flooded caves....
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