Although goosebumps may not serve many purposes to humans nowadays in terms of a threatening display, it is evident in the wildlife around us on cold wintery mornings or when a threatened animal has a similar reaction to fear or intimidation, causing its fur to be puffed out and making itself appear bigger or more dangerous.

https://m.stacker.news/41749 Perhaps a more dramatic example of ‘goosebumps’ in animals is that of the porcupine, which puffs out its quills when sensing danger making even a pride of lions rethink their meal choice. Porcupines’ ability to erect the quills is a voluntary action helping in their defence