What is used to make noises in a pig?

Pigs make noises using their vocal cords located in their larynx, just like humans.

However, pigs have a wider range of vocalizations than humans, including:

* Oinks: The most common pig sound, used for a variety of purposes like calling for attention, expressing contentment, or warning others.

* Grunts: Low, guttural sounds often used for communication within a group or to express discomfort.

* Squeals: High-pitched sounds used to express pain, fear, or excitement.

* Snorts: Short, forceful exhales through the nostrils, often used to express aggression or alarm.

* Barks: Short, sharp sounds used to communicate with other pigs.

* Roars: Deep, powerful sounds used to intimidate or threaten other pigs.

So, while the mechanism for making noise is the same as in humans, pigs have a unique repertoire of sounds and variations depending on the context.