As few of us post letters these days, the annual shock of buying a book of stamps is as much a Christmas tradition as the ...

Fall is upon us in the Old Pueblo and the Salvation Army Tucson has kicked off the season with the 4th Annual Socktober drive. The in-kind donation event, which continues through Oct. 31, seeks to ...

Some physical traits that differ between sexes are known to be linked to certain single nucleotide polymorphisms (SNPs) in chromosomes other than the X and Y chromosomes, with each SNP representing a ...