Dr Manning and Dr Baron-Cohen found that autistic children had extremely long ring fingers compared with their index fingers.
On average, lesbians have ring fingers that are longer than their index fingers, a feature that is typical of men but not of heterosexual women.
That leads us to the main buttons you'll be using, which are conveniently planted where your index fingers and thumbs would naturally land on the earcups.
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Overall, therefore, men tend to have longer ring fingers than index fingers, whereas in women the two fingers are more likely to be of equal length.
So now I clip the wallet with my middle and index fingers, and as I close the jacket and turn you to the right it just slides out.
They also estimated the students' exposure to the hormone before they were born by measuring the ratios of their index fingers to their ring fingers (a long ring finger indicates high testosterone exposure) and by measuring how accurately they could determine human emotions by observing only people's eyes, which also correlates with prenatal exposure to testosterone.
He will just have two of the fingers on his right glove sewn together so that his injured index and middle fingers can be taped together inside it.
Take, for example, iTap gloves, the thumb, index and middles fingers work on a touchscreen.
Mr Cesar Santos, 55, lost the index and middle fingers on his right hand whilst operating a lathe in February 2012.
He jested as the myriad of TV cameras converged on his expressions, gesticulating how fast he would run with two rapidly moving index and middle fingers.
Zinc fingers, so named because they contain a zinc atom and are shaped like an index finger, can turn specific genes off or on or to some point in between, delete genes altogether or add new genetic material.
They found the age range for heart attacks in men where the index finger was relatively long was 35 to 80 years of age, but in those with relatively long ring fingers it was 58 to 80.
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