Conditions on the Yukon River required dogs to go through deep snow and navigate glare ice.

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This time, with a larger exhibition space along the Hudson River during the day, more dogs were allowed.

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Roughly 100 years ago, New York dog catchers rounded up strays, locked them in cages, and dumped them into the East River (they were paid by numbers of dogs disposed daily).

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They carried takeout coffees, walked their dogs, and took pictures of one another standing in front of the crashing East River waves with their cellphones.

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