Psychology researchers have focused on the idea that people form friendships with those who are similar, familiar and nearby. But how do individual people pick those who will become their friends?

Signals people receive from family and friends may have more influence over the likelihood they'll get a COVID-19 vaccine than public health messages.

Popularity, not strength or age, determine the reproductive success of male dolphins, a new study shows.

Many people are feeling the urge to quit Facebook. It’s not hard to do, technically speaking. It’s a good idea, however, to pause first and look back on your digital memories.

Female giraffes may have closer friends, but males have more social connections, perhaps due to their wide roaming in search of females to mate with.

Growing weed indoors is not an environmentally friendly process. Climate controls create a lot of greenhouse gas emissions, and where the pot is produced has a huge influence on emission levels.

Gregarious female giraffes that develop a sense of larger community live longer than those with fewer friends, a new study shows.

Teens who bully, harass, or otherwise victimize their friends probably do so to get to the top of their school's social hierarchy, a new study shows.

Teens who bully, harass, or otherwise victimize their friends probably do so to get to the top of their school's social hierarchy, a new study shows.