2NA Animal world

https://www.theguardian.com/commentisfree/2017/oct/16/we-treat-our-pets-as-people-is-it-because-its-getting-harder-to-have-faith-in-humans

https://www.bbc.co.uk/programmes/b09s88vl

https://www.englishclub.com/vocabulary/idioms-animal.htm