BlogArena

General blog about anything and everything of everyday's life.

24. Aug 2019

January 28, 2014
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Does it pay to be a lover or a fighter? It depends on how you woo females

As mating season approaches, male animals are faced with a question that can make or break their chances at reproducing: does it pay to be a lover or a fighter? Or both? Researchers from The University of Manchester and Syracuse … Continue reading

April 30, 2013
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UCLA researchers discover sperm move along a ‘twisting ribbon’

Opening the door to more sophisticated investigation of sperm locomotion and biophysics, researchers from UCLA’s Henry Samueli School of Engineering and Applied Science have identified previously unobserved swimming patterns in human and horse sperm cells. This research, published in Scientific … Continue reading

March 18, 2013
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Selfish Gene may Undermine Genome Police

Biologists have been observing the “selfish” genetic entity segregation distorter (SD) in fruit flies for decades. Its story is a thriller among molecules, in which the SD gene destroys maturing sperm that have a rival chromosome. A new study reveals … Continue reading

December 5, 2012
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Electrically Spun Fabric Offers Dual Defense Against Pregnancy, HIV

The only way to protect against HIV and unintended pregnancy today is the condom. It’s an effective technology, but not appropriate or popular in all situations. A University of Washington team has developed a versatile platform to simultaneously offer contraception … Continue reading

November 13, 2012
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Sperm Length Variation is not a Good Sign

A new study published online in the journal Human Reproduction finds that the greater the inconsistency in the length of sperm, particularly in the tail (flagellum), the lower the concentration of sperm that can swim well. The finding offers fertility … Continue reading

September 30, 2012
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New Fish Species Offers Literal Take on ‘Hooking Up’

Fishing hooks aren’t the only hooks found in east-central Mexican waters. A new species of freshwater fish described by a North Carolina State University researcher has several interesting – and perhaps cringe-inducing – characteristics, including a series of four hooks … Continue reading

August 28, 2012
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Nutrition Tied to Improved Sperm DNA Quality in Older Men

Berkeley Lab study links healthy micronutrient intake with reduced DNA fragmentation A new study led by scientists from the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab) found that a healthy intake of micronutrients is strongly associated with … Continue reading

May 23, 2012
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Pollination with Precision: How Flowers Do It

Pollination could be a chaotic disaster. With hundreds of pollen grains growing long tubes to ovules to deliver their sperm to female gametes, how can a flower ensure that exactly two fertile sperm reach every ovule? In a new study, … Continue reading