- https://www.nelcuore.org/home/2017/10/07/inghilterra-rischia-5-anni-di-carcere-chi-maltratta-gli-animali/
- http://www.lastampa.it/2017/10/10/multimedia/societa/lazampa/la-peta-e-lorrore-dei-maiali-hulk-usata-la-genetica-per-renderli-enormi-6J8LAlzoVi48gWqhLjC27H/pagina.html