A heart-warming video shows a caring canine helping another dog to safety after it got its neck stuck in a railing.
Teacher Edith Govea, 33, captured the adorable rescue mission in the central Mexican city of San Luis de Potosi with her smartphone and shared the footage on Facebook.
It begins with a small white dog which has got stuck trying to wriggle through railings on the top of a courtyard wall and is struggling to push his way through.
Suddenly, a much larger German Shepherd appears and decides to literally lend a paw, using it to try to pull the little dog through the gap.
At first the bigger dog's efforts seem to make no difference so she tries with two paws and even her teeth as she gives the other dog a gentle tug by the scruff of his neck.
And, finally, she manages to drag the little dog far enough through the railings for him to squeeze the rest of the way through and jump down to the ground.
Ms Govea shared the video on Facebook with the caption: "Bunny: 'Hurry!!
"Hurry!! Before my human comes!!', Shorty: 'Help me!!', Bunny: 'Yeah... yeah!!'"
The teacher later revealed that the heartwarming incident happened in the Pavon neighbourhood of San Luis Potosi.