Helen Rosner on Twitter: "Someone please tell the redditors that she is a beautiful otter-panther-dog who is (we think) half border collie and half flat-coated retriever and she's 1.5 years old and
Golden Retriever Border Collie Mix: A Loving, Energetic Companion
BORDER COLLIE VS FLAT COATED RETRIEVER - YouTube
My Sasha Rey (Flattie/Border Collie Mix) : r/flatcoat