âHELL is other peopleâ declares a character in Sartreâs Huis Clos. According to Kaitlyn Gaynor of the University of California Berkeley, animals and birds are echoing that sentiment; they are shunning us increasingly. In addition to polluting and destroying their habitats, we are changing the behaviour and lifestyles of many wild creatures Gaynorâs team analysed the results of 76 studies on 62 species spread across six continents.