the quality of being like an animal or displaying behavior that is characteristic of animals, especially in terms of being instinctive, unrestrained, and considerably physical, or such animal-like behavior;
e.g. Their wild behavior and animalism was ridiculous to watch.
(noun)
the worship of animals as religious beings/deities;
e.g. They carried out some rituals of animalism, in observance of the animals that they consider to be sacred.