News: Hyena laughs and giggles decoded

From the BBC Wildlife Website:

The giggling sounds of a hyena contain important information about the animal’s status, say scientists.

In the first study to decipher the hyena’s so-called “laugh”, they have shown that the pitch of the giggle reveals a hyena’s age.

What is more, variations in the frequency of notes used when a hyena makes a noise convey information about the animal’s social rank.

Read more here.