Twisted Sifter on MSN

Elephants Communicate With Infrasound At A Frequency So Low That Humans Can’t Hear It

Elephants are smart creatures, there’s no doubt about it. And just when you think you know every amazing fact there is to ...
Earth.com

Wildlife's secret conversations use infrasound

Nature’s most impressive conversations happen at frequencies we cannot hear. While humans perceive sounds between 20 and ...