An curved arrow pointing right. The Science of Dogs blog compared popular dog breeds from the 1915 book "Dogs of All Nations" to their current day counterparts. Produced by Emmanuel Ocbazghi ...

Do you ever wonder what a certain dog breed looked like 100 years ago? Many have changed over the years, and it's quite ...

Over the last 100 years, dogs have changed dramatically, all thanks to selective breeding. Once valued mainly for their ...

The profusion of breeds today -- at least 150 -- reflects intense, purposeful interbreeding of dogs in the past 150 years. At the same time, the entire history of dogs and their relationship with ...

Missouri has 26 breeders included on the list, which details violations or concerns at 100 commercial breeding operations across the country.