Species ideas are made by me.
Cloudlogs are dogs, wolves, or even canine animals with a cloudy appearance of a cloud. Unlike other dogs, they do not really need to be taken care of, as for, they can take care of themselves (examples: they can make their own dog food by adding their fur coat of clouds) unless they are like too little.
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They love to play outside, and making their own clouds.
They can play a prank on their owners.
They sometimes walk in all fours, or some can stand up walking.
They can make a "nish!" instead of barking.

I dunno. Sounds bizarre?