Mon, Feb 14 2011 at 1:16 PM
Men, after hearing the word 'Valentine' were more likely to help a woman in need.
Mon, Feb 14 2011 at 12:00 PM
Stay out of the doghouse and send a Valentine e-card to your honey. Here are a few of our favorite free sites.
Mon, Feb 14 2011 at 10:09 AM
Skip the lovey-dovey and load up on these fun finds for the bitter-hearted.
Mon, Feb 14 2011 at 9:43 AM
Discover all the physical perks of a romantic relationship.
Fri, Feb 11 2011 at 5:54 PM
This so-called 'love hormone' always seems to get a publicity boost around Feb. 14, but research suggests that oxytocin isn't all roses and heart-shaped chocolates.
Fri, Feb 11 2011 at 2:05 PM
Agents check for insects and plant diseases that could wreak havoc on the American ecosystem.
Fri, Feb 11 2011 at 1:49 PM
Food news and items of interest from around the Web for your weekend reading.
Fri, Feb 11 2011 at 1:25 PM
Brutish, aggressive, anatomically puzzling and straight-out weird, the ways in which insects seduce and procreate isn't always pleasant, but it is endlessly fascinating … or squirm-inducing, depending on whom you ask.
Fri, Feb 11 2011 at 1:08 PM
NASA hopes the glimpse of the comet will help scientists understand how comets form.
Fri, Feb 11 2011 at 11:55 AM
Video: Sheril Kirshenbaum, author of a new book that examines the science behind a smooch, talks to Meredith Vieira about what your body goes through when you lock lips.