蜜芽传媒

Talking with your mouth full is an unattractive trait, but for other, non-human, great apes it is a normal part of meal time. Primatologist Eva Luef explains to Dr Adam Rutherford that this humming and singing during meal time is a way of signalling without wasting valuable eating time.

First broadcast on 蜜芽传媒 Inside Science, 25 February 2016.