"Add them up, all the pet dogs on the planet, and you get about 250 million.
But there are about a billion dogs on Earth, according to some estimates. The other 750 million don't have flea collars. And they certainly don't have humans who take them for walks and pick up their feces. They are called village dogs, street dogs and free-breeding dogs, among other things, and they haunt the garbage dumps and neighborhoods of most of the world."
From the April 18, 2016, New York Times story: The World Is Full of Dogs Without Collars. Written by James Gorman.
When I first moved to Thailand five years ago, all of the stray dogs that roamed the streets of Bangkok had an instant impact on me. There were just so many of them on almost every street I walked.
While it was heartbreaking to see, thankfully, because Thailand is predominantly a Buddhist culture, these street dogs of Bangkok were not only left alone, but for the most part treated with kindness and compassion.
If you'd like to see some of the street dogs of Bangkok I captured in my years of living there, please check out the following: STREET DOGS OF BANGKOK.