BY DEFINITION, a validated supercentenarian is a properly documented centenarian who has lived to be at least the age of 110 years. The tables reproduced below and various other tables of supercentenarians are regularly updated by Dr. Stephen Coles, one of the members of our Editorial Board, along with other members of the Los Angeles Gerontology Research Group (GRG). For further details, pleas...

The genomes of the nematodes Caenorhabditis elegans and Caenorhabditis briggsae both contain approximately 100,000 introns, of which >6,000 are unique to one or the other species. To study the origins of new introns, we used a conservative method involving phylogenetic comparisons to animal orthologs and nematode paralogs to identify cases where an intron content difference between C. elegans a...