How do you get siblings to be nice to each other? Latino families have an answer

The Science of Siblings is a new series exploring the ways our siblings can influence us, from our money and our mental health all the way down to our very molecules. We'll be sharing these stories over the next several weeks.

Back in college, Caitlynn Almance remembers one time her little sister called her up and asked her if she could borrow a pair of boots for a high school event.

But there was one big problem: Caitlynn went to college in a town two hours away from her family in Odessa, Texas. To deliver the boots, she'd have to drive two hours each way.

Caitlynn didn't hesitate. "I had only a four-hour break between classes and theater rehearsal, so I drove all the way down to Odessa, dropped off the boots at the front door and drove all the way back to school," Caitlynn says. "It's because my sister needed them."

To say Caitlynn cares for — and loves — her little sister would