(VCG via Getty Images)

This is what breeding does.

Even just 100 years ago, some modern, popular breeds looked drastically different.

Throughout human history, dogs have taken on many shapes and forms. Some of the oldest dog breeds to arise from selectively breeding the wolf include the Chinese Shar-Pei, the Lhasa Apso, and the Alaskan Malamute. But what these dogs looked like when they were first introduced to the world is probably a lot different than how they appear now, as can be attested to by these dog pictures from just 100 years ago of breeds we are all familiar with.

Can you guest what they are?