Nature’s most impressive conversations happen at frequencies we cannot hear. While humans perceive sounds between 20 and 20,000 hertz, many animals have evolved to communicate using infrasound. These ...

In the vast African savanna, an elephant lifts its head, pauses for a moment and begins to walk. No call, no trumpet, not even any visible signal. Miles away, another herd does the same. No sound ...

Discovered: Elephants communicate through "infrasound"; allergies may help prevent brain cancer; playfulness is attractive; 97% of Greenland's surface ice is melting. Don't hate the player. For most ...