Endangered monk seals are dying off despite being in protected areas.
A new study finds that levels of testosterone, the "macho" sex hormone, drop in new fathers
Insects that hitch rides in shipping containers cost local governments and homeowners $2.5 billion each year. Sophie Bushwick reports
A growing body of research suggests nature walks may be more restorative than traditional stimulants like caffeine. David Biello reports
Christian de Duve, 1974 Nobel laureate for physiology or medicine, talks about going from a cell biologist to a theorist on evolution and the origin of life
From hacking infrastructure to a detonating a nuclear "dirty bomb," what are the most likely next terrorist attacks?
Alginate from brown algae could allow stable silicon anodes to replace graphite anodes in better, cheaper batteries. Cynthia Graber reports
Letters to the editor from the May 2011 issue of Scientific American
Australopithecus sediba is a mosaic of modern and primitive traits.
MyMicrobes project will gather DNA data from online community.
A new study suggests that preventive, proactive approaches are the most helpful--and that our stress management IQ is painfully low
BRCA1 mechanism may explain how other tumor suppressors work
Fossil suggests evolutionary order requires revision
Yellowing of the eye lenses changes the array of incoming light wavelengths, which can affect circadian rhythms, including sleep patterns. Katherine Harmon reports