Flat-Coated Retrievers are much different from the others, just like Labs are different from Tollers and goldens are different from Curly-Coats. Flat-Coats don't weigh as much as the other Retrievers usually and they have medium length straight hair. they can come in Black and sometimes Liver occasionally there are some yellow ones. Flat-Coats are sometimes a bit more active than other retrievers and they are more slender built. Their Heads are more wedge shaped than the others too They are gorgeous dogs!If you ever watch a show called good dog, the host has a Flat-coat named Oden and a Toller named Dancer. I hope I helped a little.