na-adjective
animalistic; beastly; carnal
Describes behavior, instincts, or desires that are raw, physical, and unconstrained by reason or social norms, like an animal's.
彼の動物的な食欲には驚かされる。
I'm amazed by his animalistic appetite.
その映画は人間の動物的な本能
That movie depicts the animalistic instincts of humans.
野性的 means 'wild' or 'feral', often with a nuance of untamed nature; 動物的 focuses more on base instincts and physicality.
Formed from 動物 (animal) + the adjectival suffix 的 (-like).