I'm back

Dirac Strings and Magnetic Monopoles in Spin Ice Dy2Ti2O7

Recent de novo origin of human protein-coding genes

A Serotonin-Dependent Mechanism Explains the Leptin Regulation of Bone Mass, Appetite, and Energy Expenditure

Googling Food Webs: Can an Eigenvector Measure Species' Importance for Coextinctions?

Video of the week: A 3D view of Rama object

and finally don't miss bestiario.org.