
Personality may be the key to longevity
Being outgoing and enjoying laughter could help you reach 100.

Rare butterfly expanding its ranges
Some species will suffer from climate change while others will thrive — it all depends on their interactions with other species.

Arachnophobia cured within three hours
Brain scans show long-term effects of therapy to reduce fears.

Ancient creature brought back to life with 3D model
A highly advanced computer model shows how an early tetrapod heaved itself out of primordial water.