Last week our Newfoundland delivered six healthy puppies, and for the first few days I thought I already knew exactly what I was looking at: a wiggly, sleepy pile of black fur, milk-drunk naps, and the usual round-the-clock routine of weighing, warming, and changing bedding. Then people started leaning over the whelping box, counting once, counting twice, and stopping dead at the very last puppy. One by one, every visitor had the same reaction: a full pause, a gasp, and then the question I’ve now answered at least 20 times.
If you’ve ever looked at a giant-breed litter and wondered how one puppy can look so different from the rest, the explanation is a lot less mysterious than it seems. In our case, the surprise comes down to coat-color genetics, specifically a recessive brown gene that can stay hidden for generations and then suddenly appear when both parents quietly carry
