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Tag: "fin" at biology news

Triple threat: World fin trade may harvest up to 73 million sharks per year

...ober 2006 edition of Ecology Letters. "The shark fin trade is notoriously secretive. But we were able tap into fin auction records and convert from fin sizes and weights to whole shark equivalents to get a good hand...

Humpback whales have brain cells also found in humans

...humpback whale and compared it with the brain of a fin whale (another baleen species) and brains from sev...s" in the cerebral cortex that is also seen in the fin whale and other types of mammals. The authors speculate that this structural feature may have evolv...

How does a zebrafish grow a new tail?

...-catenin, impairs cell proliferation, and inhibits fin regeneration. Fish that have a mutant Wnt5b protein regenerate missing tails very quickly. Too much of another related protein, Wnt8, also increases cell proliferation in the regenerating fin. "We can actually increase the rate of regeneration by t...

UF scientists discover evolutionary origin of fins, limbs

... intuitively one would think the genetic tools for fin development would be brought together in that plac...ebrates was a major evolutionary innovation toward fin - and eventually limb - locomotion, Cohn said. The earliest fishes lacked paired fins, similar to th...

IMF Launches World’s First DNA Database for Myeloma Patients

... are conspicuous, elongate projections of the tail fin and are known to be subject to female mate choice.... he said. "That is, male ornamentation of the tail fin may have evolved largely due to the pre-existing preference for an elongate structure of a similar s...

Certain fish have a special mating preference

... are conspicuous, elongate projections of the tail fin and are known to be subject to female mate choice.... he said. "That is, male ornamentation of the tail fin may have evolved largely due to the pre-existing preference for an elongate structure of a similar s...

Same mutation aided evolution in many fish species, Stanford study finds

...rom marine ancestors that are covered head to hind fin in body armor. Although it's not clear why losing ...work a visible change in the fish. However, in the fin study the group wasn't able to pinpoint the exact genetic alteration. The group continues to wade o...

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(Date:4/24/2014)... out a welcome mat to bacteria seeking to invade, and ... published this week in the Proceedings of the National ... between microbe and host that researchers can exploit to protect ... plant Arabidopsis puts out a molecular signal that ... hostile army were unknowingly passing by a castle, and the ...
(Date:4/23/2014)... is available in French and German . ... female? In humans and other mammals, the difference between sexes depends ... is present only in males, where the two sexual chromosomes are ... Y is ultimately responsible for all the morphological and physiological differences ... the case. A very long time ago, the X and Y ...
(Date:4/23/2014)... Scarborough research shows that male black widow spiders prefer ... rare example of mate preference by male spiders. ... MacLeod and Maydianne Andrade, a professor in UTSC,s Department ... and the wild that males overwhelmingly chose to mate ... widows can tell whether a potential mate is well-fed ...
Breaking Biology News(10 mins):How a plant beckons the bacteria that will do it harm 2How a plant beckons the bacteria that will do it harm 3Male or female? 2Male or female? 3Picky male black widow spiders prefer well-fed virgins 2
(Date:4/24/2014)... It is better to give than to receive at ... new study suggests. , The study found that 15- and ... their money to family members, are less likely to become ... risks or keeping the money for themselves. , The researchers ... Academy of Sciences . , The study focused on the ...
(Date:4/24/2014)... The National Science Foundation has awarded LSU Health ... Undergraduates (REU) Site grant in the amount of ... undergraduates from diverse social and educational backgrounds, underrepresented ... area. The project will provide students with ... 2014-16. It will be led by Principal ...
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(Date:4/23/2014)... the National Institute of Arthritis and Musculoskeletal and Skin ... the Ross Prize in Molecular Medicine, conferred by the ... The award will be given on June 9 at ... by scientific presentations by Dr. O,Shea and other prominent ... Health. , The award, which includes a $50,000 prize ...
(Date:4/23/2014)... Ind. - Purdue University researchers have developed a way ... cell by using tiny gold particles with tails of ... of agricultural and biological engineering, used gold nanoparticles to ... as BRCA1 messenger RNA splice variants, which can indicate ... of these mRNA splice variants in a cell can ...
Breaking Medicine News(10 mins):Health News:Study: Altruistic adolescents less likely to become depressed 2Health News:Pilot study suggests ways to widen access to fecal transplants for C. diff infections 2Health News:NIH scientist to receive Ross Prize in Molecular Medicine 2Health News:Gold nanoparticles help target, quantify breast cancer segments in a living cell 2
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