puff. 1  a short, quick blast, as of wind or breath. 2  an abrupt emission of air, smoke, vapor, etc. 3  an act of inhaling and exhaling, as on a cigarette or pipe; whiff. 4  the sound of an abrupt emission of air, vapor, etc. 5  a small quantity of vapor, smoke, etc., emitted at one blast. 6  an inflated or distended part of a thing; swelling; protuberance.
The Shetland Sheepdog is related to the Rough Collie, both dogs descended from Border Collies that inhabited Scotland. The Border Collies were brought to the Scottish island of Shetland and crossed with the Icelandic Yakkin, a small island dog which is now extinct. By 1700, the Sheltie was completely developed.
The Shetland Sheepdog is often met with cries of Oh look! A mini Lassie dog! -- because it resembles a miniature Rough Collie. But Shelties come from different breeding lines, with Collie crosses only in the last 100 years.Take a look at our fascinating Sheltie History, tracing the evolution of the Shetland Sheepdog from its herding dog origins in Scandinavia, to Collie crosses in the Shetland Islands.he Shetland Sheepdog is often met with cries of Oh look! A mini Lassie dog! -- because it resembles a miniature Rough Collie. But Shelties come from different breeding lines, with Collie crosses only in the last 100 years.