I would be sure to check your dogs for worms and have a general blood test run. This would be the best starting place.
Golden Retrievers will sometimes get gray spots on their tongue, but not blue. Also, it will not be a solid gray color, only spotting. Spaniels tongues should be pink.
Bitot's spots are superficial, foamy gray, triangular spots on the white of the eyeball.
by craters in space
tongue piercing
The color of their fur is pure white with dark black spots. They can also have a smoky gray or yellowish fur. The spots could be dark gray instead of dark black spots.
Yes, boxers can be gray!
Two out of twelve reduces to 1/6.
Yellow rat snake: Gray eyes and skin with irregular shaped dark brown spots along the back and head. The gray skin parts are very pale, almost white.Everglades rat snake: Gray, but with a mottled pinkish hue and much more regular shaped spotting. The spots are lighter brown with a slight dark brown outlining, and repeat horizontally in regular increments along the back. Also, the spaces between the spots are brownish hue, rather than a white-ish gray, like the yellow rat snake.
Wolves and dogs are the same species, just a different subspecies. The dog is, basically, a domesticated wolf.
Dogs are a subspecies of the Gray Wolf.
The cause of the endangerment was man made causes for the gray wolf.
gray, white, or black. dogs are colorblind.