14/04/2026
Research supports the common understanding that early development for puppies during the critical phases carries through to adolescence, and those that miss structured training towards these milestones or struggle for other reasons, such as temperament, tend to require a much higher level of training and management in the long run. Check out our blog post and related research conducted on guide dog puppy development: https://directk9.com.au/critical-puppy-development-milestones/