Giraffes do not have vocal cords. For many years, it was considered that giraffes spend most of their lives silent, save for the odd snort. According to new research from the University of Vienna’s section investigating animal acoustics, giraffes aren’t so silent after all: they spend their evenings singing.

Researchers theorised that humans couldn’t hear giraffe communication because the frequency was too low to be heard.

━━━✧@BIOOZOO✧━━━