Primatology Lesson of the Day #14:
Gorillas use baby talk when communicating with infants.
Infant-directed speech is a phenomenon wherein adults alter their language when addressing infants in a way that will help them obtain the information easier. This can be through using softer tones, repetition, or even through use of a less vocal and more touch-based form of communication known asmotherese.
Gorillas and rheus macaques are so far the only nonhuman primates known to use motherese.