Will Littermates Remember Each Other?

While some researchers believe a dog cannot recognize their littermates, there is some evidence to suggest this is not true and they actually can. ... If your dog had a particularly close bond with a sibling, this can also mean they will have the ability to remember their sibling years down the road.

Do sibling dogs remember each other?

Do dog siblings remember each other? Dogs may remember their siblings (or rather their smell), but it's not that different from how they would remember any other animal (or person) from their past. If they associate them with safety and comfort they'll be happy to see them.

Do littermates miss each other?

Puppies spend at least the first nine weeks of their lives with their littermates. So when they leave the litter for their new homes, it's a large adjustment. They don't understand why they're alone and they do miss their playmates, although they probably won't recognize them later in life.