Lion populations are urgently threatened by habitat loss and human persecution. Researchers from ALERT, a non-governmental organisation, are taking steps to assure the species' future.

How drift bottles and rubber ducks unravelled the mysteries of ocean currents.

Issues with renewables have been touted for years, but how far have we come in providing solutions — and can the grid cope?

Are social networking sites a platform for building connections and accessing support, or a cyber trap for developing brains?

Human-like aliens have been a staple of sci-fi cinema for over a century. Are modern films breaking the stereotype, and could they prepare us for a real-life first encounter?