Helicopters have one of the most recognizable sounds in aviation. The signature "whop whop" or deep thumping sound announces its arrival long before it appears in the sky. It's a sound so iconic, it's ...

A low-flying helicopter sparked a mating frenzy at a crocodile farm in Australia. It's currently courtship season for saltwater crocs on the continent. The crocs may have mistaken the chopper's sound ...

A study has found that the "thunderous sound" made by the rotor blades of military helicopters "provokes sex frenzies among saltwater crocodiles in Australia", said The Telegraph. The researchers ...