How Did This Stray Street Dog Know,

that this place could help it?

Google Translate from the Portuguese video description as follows:

'Injured dog enters veterinary clinic alone and receives treatment in the interior of Ceará. Street animal had a wound on his paw and was diagnosed with a tumour after entering the establishment located in the Center of Juazeiro do Norte.'

a fund has been set up to treat the dog, Veterinarian Dr. Dayse Ferreira da Silva met the dog at the door and immediately led him into the back for tests, the doctor is raising funds to pay for surgery so that the tumour can be removed to give the dog back full use of his paw, but how did the dog know that this was the place for help?  

latest update, as of this date, she has raised more than twice the amount necessary, so the procedure will commence, great news for all involved.