Inducing death in the mother of your future children may not be the wisest way to maximize your contributions to the gene pool. And yet male flies do just that: their sperm (or, more correctly, their seminal fluid) increases the death rate of recipient females. In the November 21
Researchers sampling deep ocean waters off the Louisiana coast in 2010 found this five-and-a-half-inch-long pocket shark (Mollisquama sp.), which is named for a hole behind its pectoral fin and represents only the second known specimen of its genus.