Many well-known breeds have changed a lot
physically in the last century, thanks to humans
Thursday 18 February 2016
Dogs have been our furry companions for
thousands of years, but they didn't always look the way they do today.
Many well-known breeds have changed a lot
physically in the last century, thanks to humans.
By identifying specific traits — such as
size, coat color, and demeanor — and allowing only those animals to mate, we've
created at least 167 different "breeds," or groups of dogs with
unique physical and mental characteristics. Still, they're all part of the same
species.
The Science of Dogs blog put together
a side-by-side comparison of several popular breeds from the 1915
book "Dogs of All
Nations" by Walter Esplin Mason, showing what they look like
today.
Here are some of the dogs from that list,
plus a couple more we found ourselves:
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