- Science Blog
- By Laura Sinpetru
- September 24th, 2015
Listen: Giraffes Humming Under the Cover of Darkness
Giraffes talk too, it's just that we don't hear them
- Nature
- By Tudor Vieru
- August 10th, 2009
The Source of Earth's 'Hum' Finally Discovered
It has puzzled researchers for more than a decade