Références :               

1)chien et chats :

https://conseils-veto.com/wp-content/uploads/2018/03/Intoxication-chocolat-chien-chat-f%C3%AAtes.png

https://www.google.com/url?sa=i&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwiIluWKibXbAhVHyqQKHcKiCXUQjRx6BAgBEAU&url=http%3A%2F%2Fthedogspictures.blogspot.com%2F2013%2F03%2Fsamoyed-sledding-dog.html&psig=AOvVaw1Z9Z93pbjzHqbIgrEYYjTy&ust=1528032032241654

http://www.sun-sentinel.com/opinion/commentary/fl-veiwpoint-zika-pets-20160813-story.html