Izilwane zasendle zibhekene nezinsongo ezikhulayo ezivela emisebenzini yabantu, ukulima kwezimboni, ukugawulwa kwamahlathi, nokwanda kwamadolobha okuphuca zona kanye izindawo zokuhlala ezibalulekile ukuze ziphile. Amahlathi, izindawo ezingamaxhaphozi, nezindawo ezinotshani—ezaziyizimo zemvelo ezichumayo—ziqedwa ngamazinga ashaqisayo, okuphoqelela inqwaba yezilwane ezihlala ezindaweni ezihlukene lapho ukudla, indawo yokuhlala, nokuphepha kuya kuntuleka khona. Ukulahleka kwalezi zindawo akugcini nje ngokufaka izilwane ngazinye engozini; kuphazamisa zonke izimiso zemvelo futhi kwenza buthaka ibhalansi yemvelo yonke impilo encike kukho.
Njengoba izindawo zemvelo zishabalala, izilwane zasendle ziyasondelana nemiphakathi yabantu, zidale izingozi ezintsha kukho kokubili. Izilwane ezike zakwazi ukuzulazula ngokukhululeka manje seziyazingelwa, ziyashushumbiswa, noma ziyasuswa, ngokuvamile zihlushwa ukulimala, indlala, noma ingcindezi njengoba zizabalaza ukujwayela indawo engakwazi ukuzigcina. Lokhu kungena kuphinde kwandisa ingozi yezifo ze-zoonotic, kugcizelela nakakhulu imiphumela elimazayo yokuqeda imigoqo phakathi kwabantu nendle.
Ekugcineni, usizi lwezilwane zasendle lubonisa ukuwohloka okujulile kokuziphatha nemvelo. Konke ukushabalala akumeleli nje ukuthuliswa kwamazwi ayingqayizivele emvelweni kodwa futhi kunomthelela ekuqineni kweplanethi. Ukuvikela izilwane zasendle kudinga ukubhekana nezimboni nezinqubo ezithatha imvelo njengengasebenziseka, kanye nezinhlelo ezifuna ngamandla ezihlonipha ukuphilisana kunokuxhashazwa. Ukusinda kwezinhlobo eziningi zezinto eziphilayo—kanye nempilo yezwe esihlanganyela kulo—kuncike kulolu shintsho oluphuthumayo.
Amahlengethwa kanye nemikhomo ihlele ubuntu eminyaka yamakhulu eminyaka, ukuthunjwa kwabo kwezokuzijabulisa nokudla kwakha izingxoxo ezijulile zokuziphatha okuhle. Ukusuka kwimibukiso etholwe emapakini wasolwandle ukuze ukwazi ukusetshenziswa kwabo njengezidlakudla emasikweni athile, ukuxhashazwa kwalezi zilwane ezincelisayo zasolwandle kuphakamisa imibuzo ngenhlala-kahle yezilwane, ukongiwa kanye nesiko. Lo mbhalo uhlola amaqiniso abuhlungu ngemuva kokwenza izinto nokuzingela, okhanyisela imithelela ngokomzimba nangokwengqondo ngenkathi ehlola ukuthi ukuthweswa ngempela kusebenza imfundo noma ukonga
