How many domestic dogs in the world?

Unfortunately, there's no single, exact number for the global dog population. Here's why:

* No Worldwide Census: There isn't a global registry or census for dogs like there might be for certain livestock.

* Varied Data Sources: Estimates come from various sources (like veterinary organizations, animal shelters, and surveys), which use different methodologies and cover varying regions.

* Unreliable Information: In many areas, accurate data collection about dog populations is difficult, especially in rural or developing regions.

Estimated Ranges:

* The World Small Animal Veterinary Association (WSAVA) estimates that there are 900 million dogs worldwide.

* Other estimates have ranged from 400 million to 1 billion.

It's safe to say that there are hundreds of millions of domestic dogs in the world, but a precise figure is elusive.