The Great Dane is renowned for its incredible growth, often starting as a tiny puppy and becoming a giant adult dog.
Newfoundland puppies are adorable fluffballs, but they transform into massive, gentle giants as they grow.
The Irish Wolfhound, one of the world's tallest dog breeds, goes through significant size changes, from a small pup to an impressive adult.
Watch as Saint Bernard puppies develop into the iconic rescue dogs known for their enormous size and loving nature.
English Mastiffs are known for their remarkable growth, evolving from playful puppies to imposing adults.
Leonbergers start as fluffy, adorable pups and grow into majestic, large-breed dogs known for their gentle temperament.
Bernese Mountain Dogs are beloved for their transformation from fluffy, small puppies to striking, sturdy adults.