For many, the idea of soulmates still shapes how love is understood.
Related stories
The space race should not endanger Australian wildlife
Hungary detects invasive spotted lanternfly for the first time in the EU
Researchers build microscopic DNA 'sails' to pull molecules apart
Elephants use medicinal plants to treat themselves, researchers find
Climate change: Laws and policies must change to prevent future statelessness
Q&A: Why should colleges promote student physical activity?