Monogamous animals settle for less in their partners
February 2, 2011, 7:40 p.m. by Bryan Nelson
Most animals that practice social monogamy, including humans, settle for unattractive, below-average mates.
Young adults and monogamy: 'It's complicated'
January 21, 2011, 7:08 p.m. by Livescience.com Inc.
Young couples have a hard time figuring out their relationship status, with about 40 percent disagreeing. Of those that were in agreement about their commitment to each other, about 30 percent had cheated.
Cool weather heats up female butterfly quest for sex
January 7, 2011, 10:39 a.m. by Livescience.com Inc.
Temperature of caterpillar cocoons play a role in which butterflies will become aggressive suitors during mating season.
Study: Delaying sex makes better relationships
December 28, 2010, 10:29 a.m. by Livescience.com Inc.
Yes, there are couples who wait for a deep level of commitment before sex, but it's far more common for two people to explore sexual compatibility before making long-term plans. Does either method lead to better marriages?
Evolutionary twist: Snails trade awkward sex for survival
December 13, 2010, 1:19 p.m. by Livescience.com Inc.
Snails that coil counterclockwise have an increased chance of not being eaten by snakes that only eat snails that coil clockwise.