Thanks to science, we now know how pigs are feeling. Researchers programmed an algorithm with pig noises from positive and negative situations. But why? Pigs are one of the smartest animals on Earth.

Add Yahoo as a preferred source to see more of our stories on Google. Some sounds are negative and others positive, the experts say (Getty Images) Pigs are noisy creatures, from their contented oinks ...

An international team of researchers has reported the development of an algorithm that can translate the emotional state of pigs from the sound of their grunts. The researchers indicate the system ...