What is animalistic dehumanization?

Some articles on dehumanization, animalistic dehumanization:

Functions of Disgust
... disgust can be anticipated to interfere with dehumanization or the maltreatment of persons as less than human ... Some researchers have distinguished between two different forms of dehumanization ... distinctively human traits to a group leads to animalistic dehumanization, which defines the object group or individual as savage, crude, and similar to animals ...
Disgusted - Functions of Disgust
... social interaction, disgust can be anticipated to interfere with dehumanization or the maltreatment of persons as less than human ... between two different forms of dehumanization ... Failure to attribute distinctively human traits to a group leads to animalistic dehumanization, which defines the object group or individual as savage, crude, and similar ...