Over the ensuing years Panksepp and his research assistants systematically conducted study after study on rat laughter, revealing a striking overlap between the functional and expressive characteristics of this chirping response in young rodents and laughter in young human children. (scientificamerican.com)
As a working mom with two young human children, I can relate to being busy and over scheduled. (drruthpetvet.com)
What puppies lack is (especially when untrained and unsupervised) is «impulse» control, no different than that of a young human child. (meritpuppy.com)