When two merle-patterned dogs are bred together, each puppy in the litter has a 25% chance of inheriting that gene from both parents. The resulting offspring is referred to as a double, or homozygous merle. Double merles often have a predominantly white coat. Keep in mind though, that just because a dog has a white coat, doesn't necessarily Both Whippets and Border Collies are medium-sized dogs. In terms of specific size information, a Whippet Collie may fall between 18″ to 22″ (45cm to 56cm) and possibly weigh 25lbs to 55lbs (11.5kg to 25kg). Where Whippets are likely slightly taller and more lean, Collies are shorter and stockier. Finding out why your Border Collie is nervous, scared, or shaking will give you the best chance of helping her. 1. Getting nervous in her environment. Border Collies (and dogs in general) are extremely sensitive to their environment and external stimulus can be unsettling. Loud noises outside, building works, busy roads, foot traffic, and even sLqA.

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