[sirrele]

I wish I could take this seriously.. but just the fact that it doesn't mention mirror neurons when defining emotions is concerning.. (which has the scientific backing).. The definition is completely ignoring the motor neurons that play a crucial part in our ability to have empathy or emotions...

[ZeljkoS]

I think you are talking about empathy, not basic emotions. Mirror neurons are observed only in primates[1]. Birds may have some mirroring system, and lower-order animals do not. So, if you require mirror neurons for emotions, you are basically stating only primates can have emotions, maybe birds and other animals (like honeybees and crayfish) can not.

[1] https://en.wikipedia.org/wiki/Mirror_neuron