The data establish that red wolves are hybrids between gray wolves and coyotes. Since mitochondria DNA is inherited only from mother, not dad, the clusterings are interpreted to mean that some red wolf populations stem from coyote mothers and others from gray wolf mothers. Further, we argue that since the populations are not mixed, that the hybridizations were infrequent events. Similar changes are happening to other species today, as a result of human exploitation. E.g. sucker species are intercrossing in Klamath Lake, which has been degraded by fertilizer contamination and by water removal for irrigation.
Suckers are only trash fish.
Not from dogs, most certainly. But this assertion is controversial, as we shall see. Considering evolution of dogs from wolves, while certainly interesting, does not involve a change in Bauplan. Dogs are set apart from their wolfy ancestors at the species level of the Linnean hierarchy, whereas whales, along with dolphins, comprise a separate Order , the Cetacea. Because of the scale of the differences between whales and other mammals, differences arising during evolution, you might have a rather difficult time deciding the answer to this question using morphological characters.